Chapter 12.3, Problem 21PPS

To determine

To find :Probability that a person who is called will actually contribute.

Answer to Problem 21PPS

  $\text{0}\text{.05}$

Explanation of Solution

Given information :

Mercedes and Victoria are trying to raise funds for their charity by calling numbers in local phone book and asking for donations.

They reach 40% by call. 20% promise to donate funds and 25% actually send money.

Calculation:

P (promise to deonate funds) = $\frac{20}{100}=0.2$

P (actually send money) = $\frac{25}{100}=0.25$

then

P (person actually contribute) = $0.2\times 0.25=0.05$