# college math - biostatistics

posted by .

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?

• college math - biostatistics -

a)(0.125) x (0.14) = ?
b)(0.875) x (0.24) =
c)(0.50)x(0.14) + (0.50)x(0.24) = ?

• college math - biostatistics -

where did the o.875 come from

## Similar Questions

1. ### grammar

Language—Making Language Nonracist and Nonagist His grandmother really enjoys spending the afternoon at the center for senior citizens. This sentence i feel is right am i missing something. His grandmother really enjoys spending …
2. ### senior citizens

How did senior citizens lived in the middle ages?
3. ### STATISTICS

What percentage of the general U.S. population has bachelor’s degrees?
4. ### Statistics

Marks: --/20 What percentage of the general US population have bachelor's degrees?
5. ### statistics

Based on data from a statistical abstract, only about 12% 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 …
6. ### Statistics

Are my answers correct? Thanks! 1.) Based on a survey of a few thousand people, a newspaper reporter wants to draw conclusions about how a country’s citizens in general feel about the war in Iraq. At this point, is the reporter mainly
7. ### Statistics

Are my answers correct? Thanks! 1.) Based on a survey of a few thousand people, a newspaper reporter wants to draw conclusions about how a country’s citizens in general feel about the war in Iraq. At this point, is the reporter mainly
8. ### Check This Statistics Homework

1.) Based on a survey of a few thousand people, a newspaper reporter wants to draw conclusions about how a country’s citizens in general feel about the war in Iraq. At this point, is the reporter mainly concerned with data production, …
9. ### Social Studies

CCA User 2) The only native american's who successfully stayed on their land were the?
10. ### stats

Based on data from a statistical abstract, only about 10% of senior citizens (65 years old or older) get the flu each year. However, about 27% of the people under 65 years old get the flu each year. In the general population, there …

More Similar Questions