Suppose the number of gallons of milk sold at a small grocery store each week for 12
weeks is recorded in the table below.
Gallons of Milk
679
Variance
565
667
447 437 369
239
323
535
441
591
648
a) Find the population variance for the number of gallons of milk sold each week.
Round to one decimal place.
b) Find the population standard deviation for the number of gallons of milk sold each
week. Round to one decimal place.