For each data set below, draw a scatter plot of the data and calculate the correlation coefficient. Be sure to answer the question in the context of the problem!

1. An instructor suspects a correlation between the amount of time students spend studying prior to a test and their test grades. Is there a relationship between the two variables?

Hours spent studying Test score 0 40 1 41 2 51 4 48 4 64 5 69 5 73 5 75 6 68 6 93 7 84 7 90 8 95