Question 2

Two sales executives work in jewelry manufacturing firm. The probability that the older sales executive will be late on any given day is 0.20. The probability that the younger sales executive will be late on a given day is 0.15 and the probability that they will both be late is 0.09.

What is the probability

Let P(A) be probability that older sales executive is late = 0.20

Let P(B) be probability that younger sales executive is late = 0.15

1. that either or both will be late on any given day? [2 marks]
2. at least one sales executive comes to work late on any given day? [2 marks]
3. only one sales executive comes late on any given day? [2 marks]