1. A certain group of women has a

0.75%

rate of red/green color blindness. If a woman is randomly selected, what is the probability that she does not have red/green color blindness?

2. The blood platelet counts of a group of women have a bell-shaped distribution with a mean of

261.1

and a standard deviation of

63.6.

(All units are 1000

cells/L.)

Using the empirical rule, find each approximate percentage below.

a.	What is the approximate percentage of women with platelet counts within 1 standard deviation of the mean, or between 197.5 and 324.7?
b.	What is the approximate percentage of women with platelet counts between 70.3 and 451.9?