5.Although the rules of probability are just basic facts about percents or proportions, we need to be able to use the language of events and their probabilities. Choose an American adult aged 20 years and over at random. Define two events:

A= the person chosen is obese

B= the person chosen is overweight, but not obese

According to a statistical journal,

P(A) =0.43

and

P(B) =0.29.

(a) Explain why eventsAandBare disjoint.

Because an obese person is certainly overweight.Because some people may be considered obese and overweight.Because eventBrules out obese subjects.Because some people are not obese nor overweight.

(b) Say in plain language what the event "AorB" is.

"AorB" is the event that the person chosen is overweight or obese."AorB" is the event that the person chosen is not obese or not over weight."AorB" is the event that the person chosen is overweight or obese or both."AorB" is the event that the person chosen is overweight and obese.

What is

P(AorB)?

(Enter your answer to two decimal places.)

P(AorB) =

(c) IfCis the event that the person chosen has normal weight or less, what is

P(C)?

(Enter your answer to two decimal places.)

P(C) =