Chapter 2.2, Problem 35E

Use the data in Figure $2.34$ to complete Exercise $35-39$. Round off your answers to a tenth of a percent.

What percent of all people in the United States have blood that is

	a. Rh positive?				b. Rh negative?
Blood Type		$\text{O}+$	$\text{O-}$	$\text{A+}$		$\text{A-}$		$\text{B}+$	$\text{B-}$	$\text{AB+}$	$\text{AB-}$
Occurrence		38	7	34		6		9	2	3	1

Figure $2.34$ Blood types per 100 people in the United States. (Source: American Red Cross.)