In a random sample of 200 college students 110 were females1

In a random sample of 200 college students, 110 were females,125 were under the age of 21 years of age, and 45 males were 21 years of ageor older. A student is selected at random from the sample.

What is the probability that a female student age 21 or older is selected?

a. 15%

b. 20%

c.85%

d.90%

Solution