Consider the following sample data:

x	11	18	19	21	25
y	14	22	24	19	27

a. Calculate the covariance between the variables. (Negative value should be indicated by a minus sign. Round your calculations to at least 4 decimal places and the final answer to 2 decimal places.)

b. Calculate the correlation coefficient. (Round your intermediate calculations to 4 decimal places and final answers to two decimal places.)