(Choose 1 answer)
Apple would like to estimate the web browsing battery life (in hours) of the Iphone 6. Four users are randomly selected and the battery life are:4 435
Using this sample, what is the point estimate for the variance of the battery life?
A. 0.67
B. 1.40
C. 0.33
D. 2.50
E. None of the other choices is correct
38
