Chapter 10.6, Problem 33IP

To determine

To find: The probability that his or her blood type is not $O+$ .

Answer to Problem 33IP

The probability that his or her blood type is not $O+$ is $62.6\%$ .

Explanation of Solution

Given information: Approximately $37.4\%$ of the population has $O+$ blood group.

Calculation: Approximately $37.4\%$ of the population has $O+$ blood group.

A person can either have blood group $O+$ not have $O+$ . That means that:

  $\begin{array}{l}P(O+)+P(\mathrm{not}O+)=100\%\\ 37.4\%+P(\mathrm{not}O+)=100\%\\ P(\mathrm{not}O+)=100\%-37.4\%\\ P(\mathrm{not}O+)=62.6\%\end{array}$

Thus, the probability that his or her blood type is not $O+$ is $62.6\%$ .