For the following data set,calculate the sample variance. 1.72,4.01,2.55,0.67,1.93,2.05,2.69,3.13,1.22,3.84
A)1.0243
B)1.0492
C)1.0797
D)1.1659

Question

Quizplus · Accepted Answer

The sample variance is calculated by taking the sum of squared differences from the mean, divided by the number of observations minus one. First, calculate the mean: (1.72 + 4.01 + 2.55 + 0.67 + 1.93 + 2.05 + 2.69 + 3.13 + 1.22 + 3.84) / 10 = 2.381. Then, calculate each difference from the mean, square those differences, sum them, and divide by the number of observations minus one (n-1 = 9). This calculation gives a sample variance of approximately 1.0492.

For the Following Data Set,calculate the Sample Variance