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Mean & Deviation Challenge

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Mean & Deviation Challenge

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About this activity

Quick true/false on mean deviation and SD

Created by

Dr. Ibha Rani
Dr. Ibha Rani
India

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Mean & Deviation Challenge
 

Mean & Deviation ChallengeOnline version

Quick true/false on mean deviation and SD

by Dr. Ibha Rani
1

Standard deviation is measured in the same units as the data.

2

Variance is the square of the standard deviation.

3

In population standard deviation, divide by N; in sample standard deviation, divide by N-1.

4

Standard deviation is always larger than the mean.

5

If all data points are identical, the standard deviation is undefined.

6

Mean deviation is calculated using squared deviations from the mean.

7

Mean absolute deviation uses absolute deviations from the mean.

8

Standard deviation measures the average distance of data points from the mean.

9

A sample standard deviation never uses N-1 in the denominator.

10

Variance is the square root of the mean of squared deviations.

 
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