suppose you have purchased a box of pancake mix at the grocery store. pancake mix sold at the grocery store comes from two distributions. the store receives 40% of their pancake mix from distributor X and 60% from distributor Y. A recent outbreak of ecoli has required a recall of the mix. If 2% of the mix from distributor X is contaminated and 3.5% of the mix from distributor Y what is the probability that you purchased a contained box of pancake mix?