Q7 Q and T are two events and P(Q)=0.15, P(T)=0.35 and P(QAT)=0.1. Using a correctly labelled Venn diagram, find the following probabilities: a) P(QUT) b) P(Q') c) P(QAT') d) P(QUT' ) [5 marks] Q8 Quidrom, the Food and Health laboratory, based in Norwich recorded the level of caffeine (mg per cup) found in 10 types of coffee. The data are presented in the following table. Coffee A B C D E F G H J Caffeine, mg per 95 87 101 79 94 80 92 83 85 100 cup [You may use _ x2 = 80850] Find the mean and the standard deviation of the level of caffeine in the 10 types of coffee. [5 marks]