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 s out due during the month. The following is the probability chart summarizing this information. # projects due # sick days taken 2 3 4 144 270 378 198 - O 18 54 90 216 2 36 108 18 90 3 72 18 36 54 If we select 9 individuals, what is the standard deviation of those that have one project due and at most 2 sick days? Answer: X