Monday, November 12, 2012

Name 3 wasys that you can use standard deviation in the real world?

62 comments:

  1. Sport teams use standard deviation. For example a team that may be consistently good may have low standard deviation , but a team that scores alot standard deviation might be high. Another scenario may be money. In money standard deviation may mean the risk of the prices. If the investment looses money, its going to have a low standard deviation. And another one might be considering the whether temperatures in two different areas. It helps us figure out which one has the highest deviation based on it variations.

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    1. You spelt "weather" the wrong way. The way you spelt it, it would be like, "Whether or not you want to do this." The way you want to spell it is "weather," as in rain, snow, sunny.

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    2. you spelled spelled wrong

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  2. 1.looking at a bunch of senior citizens. You are looking at the relationship between height and age (did you know you shrink as you get older? All of us. Seriously.). So you survey a bunch of 80-year-olds from various locations and record their heights to get a starting point for your study. you record heights from 10 seniors, all male as you want to avoid any gender issues. The next screen shows the table of values. Notice how closely the results are grouped.
    2.The range of daily maximum temperatures for cities near the coast is smaller than for cities inland. While two cities may each have the same average maximum temperature, the standard deviation of the daily maximum temperature for the coastal city will be less than that of the inland city as, on any particular day, the actual maximum temperature is more likely to be further from the average maximum temperature for the inland city than for the coastal one. If you were planning to move to a city with a temperate climate, you would be interested in the outcome (think San Diego vs. Minneapolis – the average might be close but the spread would make a big difference).
    3.In any sport, there will be teams that rate highly at some things and poorly at others. Chances are, the teams leading in the standings will not show such disparity, but will perform well in most categories. The lower the standard deviation of their ratings in each category, the more balanced and consistent the team. Teams with a higher standard deviation will likely be more unpredictable. For example, a team that is consistently bad in most categories will have a low standard deviation. A team that is consistently good in most categories will also have a low standard deviation. However, a team with a high standard deviation might be the type of team that scores a lot (strong offense) but also concedes a lot (weak defense), or, vice versa, that might have a poor offense but compensates by being difficult to score on.




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  3. Nathaniel Perryman 2nd periodNovember 13, 2012 at 1:24 PM

    standard deviation can be used many ways in the real world by..most commonly in sports. investors may also use standard deviation in order to figure out the risk of that investment. also in real estate because people want to know the risk envolved in buying that property.

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  4. Standard deviation can be used in the world in different ways.for one u can use it for measurments,and you could also use it for investments, And another would be if u had a game and needed to keep score,or even using it for temperature wise.

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  5. Three ways you can use standard deviation in the real world is one with sports, comparing students grades, and the last one is comparing gas prices
    Decimber Lumpkin

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  6. Three ways we can use standard deviation in the real world varies. They're useful for finding the cheapest gas prices, stores too grocery shop at for low prices, etc. It may be used most amoungst athetes with their stats and scores. You can find the mean number of seconds a track runner runs, or the number of sacks a football player has per game and so on. Standard deviation can be used for the life expectancy of a battery or just comparsions in general -Visa Kennedy

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  7. three ways standard deviation can be use in the real world is when you want to find the cheapest gas prices, they use standard deviation and they use standard deviation when they want to find the lowest prices for groceries. Kayla walker 1st period

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  8. 3 ways you can use standard deviation in the real world is by determining the average height of the students in a class room. You could have 5 people that are 5'5, 2 people that are 5'7 1 person that is 6'6 and so and so forth. The amount of space between the numbers are what deviate them. Another way is with the population of distribution of a large group of people. Lastly with voting on something there can be many different answers as if you were taking a survey of what type of brand of shoe you would like. The amount of people that choose a particular brand that has the most would be in the middle and the other brands would be to the left or to the right of the mean.

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  9. Three ways you can use standard deviation in the real world is for sports teams. There used to find out which team is the best or who has the best score. Another way is temperature to see how hot or cold it is. And last is the population of anything. For instance the population in a school.

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  10. Standard Deviation Can be use to measure height of a group of people, from smallest to largest and then youy can tell the average height in the group. another way you can use standard deviation is by comapring grades to find whats the average grade in the class , and another way to figure out the standard deviation is by comparing gas prices to figure out the lowest place to get gas.

    Erica Bowles.
    2nd Period.

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  11. Standard deviation can be used to find the percentage of people that like a certain thing.You can also use it to see how man people average between a certain hieght.standard deviation is how far each data plot is from the mean on the data.

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  12. Chelsea Murray
    First Period

    Standard deviation can be used in finding the percentage of different things such as the amount of football players that actually like playing football. This would be a real life situation because things like this actually happen. Standard Deviation is used in many other things as well.

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  13. Three ways Standard Deviation can be usedis first in sports. Second finding the cheapest gas prices in local gas stations. Finally standard deviation can be used to find a percentage on what people often buy and need. That is how standard deviation can be used in the real world.


    Brandon Manuel
    6th.period

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  14. Standard deviation is a number used to tell how measurements for a group are spread out from the average. For example, standard deviation can be used to measure the average of height. Another way of seeing it is to consider sports teams. The teams that are ranked highest will not show a lot of differences in abilities. Standard deviation may mean the risk that a price will go up or down.

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  15. You can use standard deviation in band formations. It's possible because standard deviation can be determined of the amount of students are on the field. It can also be useful for finding out how many students are not in the formation because some aren't here. Another way this can be a standard deviation is to see how many formations that they can prepare on the field. So, those are my ways that the standard deviation can be used.

    Michael Matthews
    1st period

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  16. Demarvin Morgan

    You can use standard deviation in alot of diffrent ways.When you are counting money use can use it. When you are managing your money to find the percentage of what you would spend. You also can use them to find the percentage of anything you are trying to figure out. standard deviation could be very useful.

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  17. You can use standard deviation in alot of diffrent ways.First when you are counting money use can use it. Second finding the cheapest gas prices in local gas stations. Third when you doign the band formations on the feild. Standard deviation can be everywhere.

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  18. Quanisha Howell
    6th PD
    The way we use standard diviation varies, we use standard deviatiion in a lot of ways, we use standard deviation in the real world when dealing with weather, sports and finance

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  19. Standard deviation can be used in alot of different fields and professions. Predicting the movement of the stock market is one example. Another example is meteorology, the standard deviation of weather data can help an observer understand how reliable or predictable a certain weather forecast will be. Also in many different sports, there will be teams that rate highly at some things and poorly at others.

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  20. Gary Ingram(2nd Period)November 15, 2012 at 10:41 AM

    When you hear a poll on the news and the talk about the accuracy of the poll, they are talking about standard deviation. Height, The Spread Out of a large group of people's heights should fit a bell curve and standard deviation.In finance, standard deviation is a represent of stocks, bonds, property, etc.

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  21. Standard deviation can be used to calculate money. It can also be used to find averages for sports or polls. Some scientist uses them to find averages when they are doing experiments

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  22. Tim Matthews (secound period)November 15, 2012 at 1:13 PM

    Lets talk football. One way you can use standard deviation is how accurate a QB is. You can compare the interceptions and Touchdowns a QB throws.

    Secound example can be on how money works different countries. America is considered one of the most wealthiest states in the world, US would have a higher standard deviation.

    third example would be the weather, how hot or cold it gets in certain areas.

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  23. real ninja trent too real westbrooks 6th period

    u can use standard diviation wen u counting your stacks well if u have stacks . u can use the averag millions that i make and caculate how much money u are goin to before u hit 20. ima slick have more money then billgates tho

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  24. Three ways you can use standard deviation in the real world. Money deals with standard deviation for example the risk of the prices and if the investment looses money, its going to have a low deviation. Another one is sports team if the team scores alot the standard deviation is high. Weather temperatures could also be considered a standard deviation. (Giovanni Johnson 11/15/12 Period.5)

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  25. Standard deviation is a measure of how spread out numbers are.In finance, standard deviation is a representation of the risk associated with a given security (stocks, bonds, property, etc.), or the risk of a portfolio of securities (actively managed mutual funds, index mutual funds, or ETFs). Risk is an important factor in determining how to efficiently manage a portfolio of investments because it determines the variation in returns on the asset and/or portfolio and gives investors a mathematical basis for investment decisions (known as mean-variance optimization). The overall concept of risk is that as it increases, the expected return on the asset will increase as a result of the risk premium earned – in other words, investors should expect a higher return on an investment when said investment carries a higher level of risk, or uncertainty of that return. When evaluating investments, investors should estimate both the expected return and the uncertainty of future returns. Standard deviation provides a quantified estimate of the uncertainty of future returns.

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  26. Standard deviation can be used to measure the population of the number of people in a movie theater. You can find the low deviation of people that eat popcorn and the high deviation of people that eat nachos. You can use it to determine the high deviation of high school student who will graduate. You can also use standard deviation to determine the average amount of students who attend a foot ball game.

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  27. You can use standard deviation to find the cheapest gas prices at gas stations by you. You can use standard deviation to predict how accurate a weather forecast will be. You can use standard deviation to calculate the stats of athletes or scores of teams.

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  28. Standard deviation can be used to express random signals in electrical engineering. Even the signal of your heart beat, impulse etc and if u want to express in equations for your analysis, then you would use statistics for how deviating is signal from the mean of its values like power, frequency.

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  29. Three ways Standard Deviation can be usedis first in sports. Second finding the cheapest gas prices in local gas stations. Finally standard deviation can be used to find a percentage on what people often buy and need. That is how standard deviation can be used in the real world.

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  30. Tishana Hill 2nd PeriodNovember 15, 2012 at 4:51 PM

    Standard Deviation is a statistical test that can be preformed to explain the data found in a certain sample. standard deviation is used for many real life situation financial, weather, and the study of sports.in finance, standard deviation is the representation of the risk associated with given security such as stocks, bonds, property, etc. the method of using standard deviation provides an estimate of the future returns.

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  31. Standard Deviation can be used to compare score. Standard deviation can be used in money Ex:The standard deviation on interest earned shows how different one person’s interest earned might be from the average. Standard Deviation can also be used in finding the height of a population in a particular area.

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  32. Standard deviation can be used to compare statistics as in a particular sport, poll, or survey. Can be used to determine population in any category animals, people, insects etc. and also maybe used to compare class grades

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  33. lets say you were a stock trader you could use standard deviation to track the movement of a stock for a year to see how much it goes above and below the average stock price.another way is to compare the popularity of a new video game on the market compared to the one that came before it.

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  34. - I real life example of standard deviation, you will be able to find out the average (age,ordering a type of food,genre of music,etc) of things. For instance you want to know the average height of students/classmates in your class, you would come up with an average 5'5 in the class, any height below that we can assume that the person(s) or short, and any height above that we then again can assume that the person(s) are tall. we can also find out the percentages of a certain height in the class.

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  35. Standard Deviation is a measure of dispersion used in interpreting data sets. One way you may be able to use standard deviation in the real world is by collecting information or data before you make purchase, ex: a TV or Cell Phone. Housing, Cars, Computers, Gas etc.

    *Dezeray Dukes
    *1st Period

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  36. Nicolette Douglas 2nd periodNovember 15, 2012 at 7:21 PM

    Standard deviation can be used for students' test grades. Going from 100 to 69 and below. You can use it for weather temperatures as well. It helps find out the average temperature it will be that day. Another is by showing the prices of gas in various areas. Fewer place will have the lowest and highest gas, while most will be close to the national average.

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  37. in football you can use standard diviation how how manyy players go d1 in 2012 & and than how many goes d1 in 2013 , you can also use as if you was a college coach giving out offers how many do you give a year & how many players sign after the end of the year,. #shrugs

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  38. In any sport, there will be teams that are good at some things and not at others. The teams that are ranked highest will not show a lot of differences in abilities. They do well in most categories. The lower the standard deviation of their ability in each category, the more balanced and consistent they are. Teams with a higher standard deviation, however, will be less predictable. For example, a team that is usually bad in most categories will have a low standard deviation. A team that is usually good in most categories will also have a low standard deviation. However, a team with a high standard deviation might be the type of team that scores many points(strong offense) but also lets the other team score many points(weak defense).

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  39. Renard Whyte 6th PeriodNovember 15, 2012 at 8:43 PM

    Standard Deviation Can be use to measure height of a group of people, from smallest to largest and then youy can tell the average height in the group. another way you can use standard deviation is by comapring grades to find whats the average grade in the class , or another way to figure out the standard deviation is by comparing gas prices to figure out the lowest place to get gas, and Standard Deviation can also be used in finding the height of a population in a particular area.

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  40. In money, standard deviation may mean the risk that a price will go up or down(stocks, bonds, property, etc.). It can also mean the risk that a group of prices will go up or down (actively managed mutual funds, index mutual funds, or ETFs). Risk is one reason to make decisions about what to buy. Risk is a number people can use to know how much money they may earn or lose. As risk gets larger, the return on an investment can be more than expected (the "plus" standard deviation). However, an investment can also lose more money than expected (the "minus" standard deviation). Tekara Williams 2nd period

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  41. The 3 wasys that we can use standard deviation in the real world is. We use standard deviation to weight a child, sports and climate. I

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  42. You can use Standard Deviation for pools. Also sports.

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  43. Three ways you can use standard deviation is in sports pools and resturants. In sports you can use standard deviation to find scores or with players. You can use standard deviation to with pools to see how many

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  44. Tiara arnold-wade 5th pdNovember 16, 2012 at 1:50 PM

    standard deviation can be used many ways in the real world by one of the ways is Finance, sports and the weather(climate)

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  45. Freddie Martin III
    Standard deviation can be used to find out information in sports, in football, basketball, and baseball. In football it can help find the average with yards. In basketball it can help u calculate players points per game. In baseball it can help calculate number of home runs averaged in a certain amount of games.

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  46. Dean Bickley
    One way that standard deviation can be used, is in sports when you are finding stats. Another way to use standard deviation, would be in finding cheap gas prices at local gas stations. A third way where standard deviation is used is by investors. When they want to find out prices.

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  47. Standard deviation are statistics that measures how often an event strays from the norm. In real life association, an example could be two amusement park rides. The wild roller coaster that goes up a large hill, that plunges down and goes upside down would have a high standard deviation. However, the kiddie ride that goes on a mostly straight ride would have a low standard deviation. The same thing applies to stocks. A stock that goes up and down frequently, would have a high standard deviation. A inconstant stock is riskier. There's a greater chance of the investor facing a large loss at any given time. As a third example, When it comes to figuring the odds of a car accidents, workplace injuries or health costs, specialized accountants can estimate the risks.

    Raven Burford
    5th pd

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  48. Nathaniel Usher - 6th PeriodNovember 18, 2012 at 8:59 PM

    Standard deviation is a statistic that measures how far an event or series of events are from what most commonly occurs. Statisticians use standard deviation most commonly in finance to determine the level of risk. Other than finance, it can be used in sports, music, rock climbing, pretty much anything to find out how far something is from what is normal.

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  49. One way a standard deviation can be used, is in sports when stats are needed to be found. Also, standard deviation can be used when the cheapest gas at local gas stations need to be found. Another way standard deviation can be used, is when investors are dealing with money.

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  50. JASMINE MARSHALL 2ND PERIOD
    THE STANDARD DEVIATION IS A MEASURE OF HOW SPREAD OUT NUMBERS ARE.
    ITS SYMBOL IS σ (THE GREEK LETTER SIGMA).THREE WAYS THAT YOU CAN USE STANDARD DEVIATION IS FOR LIKE SPORTS STATS AND THINGS LIKE THAT, LIKE KEEPING UP WITH THE SCORE. ESPICALLY INVESTORS TO KEEP UP WITH THEIR MONEY AND EARNINGS. ANOTHER ONE WOULD BE INVOLVED WITH THE POPULATION LIKE WE LEARNED IN CLASS.SO BASICALLY IN MY OPINION YOU DONT JUST NEED IT FOR PARTICULAR THINGS BECAUSE IT PRETTY MUCH CAN BE USED FOR A VARIETY OF THINGS.

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  51. One way a standard deviation can be used, is in sports when stats are needed to be found. You can use standard deviation to with pools to see how many, or another way to figure out the standard deviation is by comparing gas prices to figure out the lowest place to get gas,

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  52. Standard deviation can be shown by comparing the amount of money people in a class make from least to most. It can also be used to show the winning percentage of high school sports teams in the county from most to least. And lastly it can be used to compare the heights of students in a class from shortest to tallest.

    Terrell Hall 1st period

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  56. Thanks fellow intellects.I had difficulties at first but am good to go.

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  57. Thanks Rivers Math Class.I can now relate the concept.

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