What does the standard deviation tell you
[DOC File]You took a sample of 31 college police departments in ...
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Find the standard deviation of the calories. Find the standard deviation of the sodium. Find the coefficient of determination for this data. What does r2 tell you about this data? How can you use a residual plot to tell if a line is a good model for data? If you know a scatterplot has a curved shape, how can you decide whether to use a power ...
Standard Deviation - Explained and Visualized - YouTube
A large standard deviation indicates that the data points are far from the mean and a small standard deviation indicates that they are clustered closely around the mean. For example, each of the three data sets {0, 0, 14, 14}, {0, 6, 8, 14} and {6, 6, 8, 8} has a mean of 7.
[DOC File]Statistics, Day 1
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AP Statistics. 1.3 Homework Worksheet. Standard deviation, 5 # summary, variance, resistance, box plots. Please show all work on a separate piece of paper. Joey’s …
[DOC File]AP Statistics Review – Chapter 1
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Calculate the variance and standard deviation for the number of delinquent acts. What does this tell you? Stated Limits Real Limits f 0-4 5 5-9 4 10-14 3 15-19 5 20-24 3 Σ Title: You took a sample of 31 college police departments in Maryland and Virginia and ask how many violent crimes occurred in 2005 ...
[DOC File]Brian’s Quick and Easy Statistics Recipes
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The greater the value of the standard deviation, the more spread out the data are about the mean. The lesser (closer to 0) the value, the closer the data are clustered about the mean ( ). - an element of a data set where represents the th term of the data set.
[DOC File]Mean, Median, Box & Whisker Plots
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What does the standard deviation tell you about a data set? If two data sets have the same mean, the data with the larger standard deviation is more spread out. Example: A company that makes raisin bread advertises that there are at least 10 raisins in every slice of bread.
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The standard deviation is the square root of the variance. The standard deviation is zero only when all values are the same. The standard deviation is strongly affected by outliers. (a) I and II (b) I and III (c) II and III (d) I, II, and III (e) I only (f) III only. 6.
[DOC File]Statistics Review Chapters 1-8
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5. Let’s say the student who applied to 8 colleges decided to apply to even more - 20 colleges. Change her value in the data set. Calculate the new mean, median and standard deviation. How does it compare to the original measures? Why do you think this is?
[DOC File]Standard deviation - 物理系
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The standard deviation can tell you how spread out your data is. It can also tell you if an individual measurement is an outlier or not. If your measurement is less than one standard deviation from the mean, it is well in the center of the range.
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A television station claims that the amount of advertising per hour of broadcast time has an average of 17 minutes and a standard deviation equal to 2.2 minutes. You watch the station for 1 hour, at a randomly selected time, and carefully observe that the amount of advertising time is equal to 7 minutes.
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