com- Gmail Turn in Test Extra Credit 1 ASSEL BEKZHANOW Question 15 of 60 Step 1

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com- Gmail Turn in Test Extra Credit 1 ASSEL BEKZHANOW Question 15 of 60 Step 1 of 1 07:39:09 the sum of squared differences. What Suppose you used the sum of the differences from the mean to calculate the variance rather than using value would you always get for the sum of unsquared differences for each data value from the mean? Keypad Answer 2 Points ed O There is no difference, it is the same as the sum of squared differences. The mean. The square root of the sum of squared differences. Prev ©2017H

Explanation / Answer

If the sum of the differences were to be used, then the sum would always be

0.

E.g : Consider 1,2,3,4,5.

The mean is 3.

The sum of differences = (1-3) + (2-3) + (3-3) + (4-3) + (5-3)

= -2 + -1 + 0 + 1 + 2

= 0.

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