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## Homework Statement

Q: Approximately 16% of the calls to an airline reservation phone line result in a reservation being made.

a. Suppose that an operator handles 15 calls. What is the probability that none of the 15 calls result in a reservation? (Give the answer to 3 decimals places.)

I have tried

1-.16=.84 (incorrcect)

I thought maybe it was not probable for an answer of 0 (incorrect)

I also at one point ended up with the answer 0.011 but cannot remember how I got that answer

b.What is the probability that at least one call results in a reservation being made? (Give the answer to 3 decimals places.)

I would think you would divide 1 by 15. Probable opportunities divided by actual opportunities. But, I am sure I am supposed to use the 16% in this equation somewhere....very stuck.

## Homework Equations

I am new to this and this is my first math class in 25 years so I am not sure what to put here.

## The Attempt at a Solution

for part a:

I have tried

1-.16=.84 (incorrcect)

I thought maybe it was not probable for an answer of 0 (incorrect)

I also at one point ended up with the answer 0.011 but cannot remember how I got that answer

for part b

I would think you would divide 1 by 15. Probable opportunities divided by actual opportunities. But, I am sure I am supposed to use the 16% in this equation somewhere....very stuck.