# college math - biostatistics

posted by
**will** on
.

hey... first time user and really lost. wondering if someone can help:

Based on data from the Statistical Abstract of the United States, 112th Edition, only about 14%

of senior citizens (65 years old or older) get the flu each year. However, about 24% of the

people under 65 years old get the flu each year. In the general population, there are 12.5% senior

citizens (65 years old or older).

a) What is the probability that a person selected at random from the general population is a

senior citizen who will get the flu this year?

b) What is the probability that a person selected at random from the general population is a

person under age 65 who will get the flu this year?

c) Answer parts a) and b) for a community that has 50% senior citizens?