Exercise 2.33

Answers

(a)

\frac{1}{2^{| C |}}

(b)

{(\frac{1}{2})}^{| A |}

(c)

Let

p

be a randomly selected person from

C

sampled without replacement.

$P (p \in A \cup p \in B) = \frac{1}{2} + \frac{1}{2} - \frac{1}{4} = \frac{3}{4}$ .

$P (A \cup B = C) = {(P (p \in A \cup p \in B))}^{| C |} = {(\frac{3}{4})}^{| C |} .$

fifthist

2021-12-05 00:00