Question

4.2 Caiphus and Betty are both taking a statistics education examination independently.
The probability that Caiphus will pass is 3/4 and the probability that Betty will pass is 5/6

4.2.1 What is the probability that both will pass? 4.2.2 What is the probability that neither will pass?

Answer 1

1.

$P=3/4\cdot5/6=15/24=5/8$

2.

$P=(1-3/4)(1-5/6)=1/24$