Remember you can't backtrack in this exam. You need to answer this question before you move on to the next question. The HR department collected data on the number of sick days taken as well as the number of projects employees had due during the month. The following is the probability chart summarizing this information. # projects due # sick days taken 1 2 3 4 0 144 270 378 198 1 18 54 90 216 2 36 108 18 90 3 72 18 36 54 What is the coefficient of correlation between the number of sick days taken and the number of projects due? Answer: 3