Variation 1. For the set of scores 5, 10, 10, 15, 25 (Datal) calculate the mean, median, mode, range, variance, and standard deviation by hand.

Ciccarelli: Psychology_5 (5th Edition)
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Chapter1: The Science Of Psychology
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I need help with variation this is a practice sheet

Name:
Variation
1. For the set of scores 5, 10, 10, 15, 25 (Data1) calculate the mean, median, mode,
range, variance, and standard deviation by hand.
2. For the set of scores, 10, 15, 20, 20, 15 (Data2) calculate the range, variance, and
standard deviation by hand.
3. Which dataset (Datal or Data2) has a wider distribution? How do you know?
4. What is the purpose of taking the square root of the variance to get the standard
deviation?
5. Take the following data and calculate the variance and standard deviation by
hand: 10, 15, 20, 20, 25
6. Rank the 3 measures of variation in order of usefulness then describe why that is.
Transcribed Image Text:Name: Variation 1. For the set of scores 5, 10, 10, 15, 25 (Data1) calculate the mean, median, mode, range, variance, and standard deviation by hand. 2. For the set of scores, 10, 15, 20, 20, 15 (Data2) calculate the range, variance, and standard deviation by hand. 3. Which dataset (Datal or Data2) has a wider distribution? How do you know? 4. What is the purpose of taking the square root of the variance to get the standard deviation? 5. Take the following data and calculate the variance and standard deviation by hand: 10, 15, 20, 20, 25 6. Rank the 3 measures of variation in order of usefulness then describe why that is.
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