The variance of the scores: 0,1,1,and 2 is
A).25
B).5
C)√)5
D)1

Name: The variance of the scores: 0,1,1,and 2 is A).25 B).5 C)√)5 D)1
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Question

Quizplus · Accepted Answer

To find variance, first we need to find the mean (average) of the scores:
(0+1+1+2)/4 = 1

Next, we subtract the mean from each score, and square the differences:
(0-1)^2 = 1
(1-1)^2 = 0
(1-1)^2 = 0
(2-1)^2 = 1

We add up these squared differences and divide by the number of scores to get the variance:
(1+0+0+1)/4 = 0.5.

The Variance of the Scores: 0,1,1,and 2 Is