Question 1107408
variance is the average of the squared differences from the mean
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first calculate the mean
:
mean = (4 +2 +1 +1 +5 +3 +0 +1 +0 +2)/10 = 1.9
:
variance = (4-1.9)^2 +(2-1.9)^2 +(1-1.9)^2 +(1-1.9)^2 +(5-1.9)^2 +(3-1.9)^2 +(0-1.9)^2 +(1-1.9)^2 +(0-1.9)^2 +(2-1.9)^2 / 10 = 2.49
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you are correct
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