If events X and Y are mutually exclusive, P(X) = 1/3 and P(Y) = 2/5, Use the information to answer the questions below
P (X u Y) is
Answer: A
P (X n Y) is
8. A group of eleven people can speak either English or French or both. Seven can speak English and six can speak French. What is the probability that a person chosen at random can speak both English and French?
Answer: B
The mean of 20 observations in an experiment is 4. If the observed largest value is 23, Find the mean of the remaining observations.
The probability that Kodjo and Adoga pass an examination are ¾ and 3/5 respectively. Find the probability of both boys failing the examination
