Discussion:
Q1: The following is a set of data for a population with N=10;
7 5 11 8 3 6 2 1 9 8
a. Compute the population mean
b. Compute the population standard deviation
Q2: The following is a set of data from a sample of n=11 items
X 7 5 8 3 6 10 12 4 9 15 18
Y 21 15 24 9 18 30 36 12 27 45 54
a. Compute the covariance
b. Compute the coefficient of correlation
c. How strong is the relationship between X and Y? Explain