Mathematics A 9-1 4MA1: Sets, Statistics and Probability Topical Past Paper Questions

Mark has three bags, bag A, bag B and bag C Bag A contains 120 counters. The probability of taking at random a red counter from bag A is 0.45 Bag B contains 80 counters. The probability of taking at random a red counter from bag B is 0.3 Bag C is empty. Mark puts all the counters…

The Venn diagram shows information about the numbers of items in set A, set B and set C, where x is an integer. Given that $ \mathrm{n}(A \cup B)' = 26 $ find $ \mathrm{n}(A' \cap C) $

Osvaldo has a biased coin. He spins the coin three times. The probability that the coin lands on a head three times is $ \frac{27}{64} $ Work out the probability that the coin will land on a tail three times