Question

In her first year of university, Mary recieved the following grades: 8, 7, 6, 7, 10, 11 Similarly in his first year, Bob recieved the following grades: 11, 9, 9, 5, 7, 5 (a) Compute the population mean and variance for Mary's grades. (b) Compute the population mean and variance for Bob's grades.
Problem #3(a):	Separate your answers with a comma, putting the mean first. i.e., mean,variance Round your answers to 2 decimals.
Problem #3(b):	Separate your answers with a comma, putting the mean first. i.e., mean,variance Round your answers to 2 decimals.

Answer 1

Mary Boby 7 MEAN VARIANCE AVERAGE(C4:09) =VAR.P(04:09) 8.17 3.14 .67 4.89

PROBLEM 3(A): 8.17,3.14

PROBLEM 3(B): 7.67,4.89