1)If P(A) = 0.75, what is the value of P(A)?

2) A Survey of 1000 adults in a small town gave the following data:

Employed, Unemployed, Total

Male 500 50 550

Female 200 250 450

Total 700 300 1000

a)If one adultin the town is selected at random, find the probability thatthe adult is unemployed.

(Round your answer to 4 decimals)

b) If one adultin the town is selected at random, find the probability thatthe adult is an employed female.

(Round your answer to 4 decimals)

c)If one adultin the town is selected at random, find the probability thatthe adult is either male or employed.

(Round your answer to 4 decimals)

d)If one adultin the town is selected at random, find the probability thatthe adult is unemployed, given the adult is a male.

(Round your answer to 4 decimals)

f)If two adultsin the town are selected at randomwithout replacement, find the probability thatboth adults are employed.

(Round your answer to 4 decimals)

Last question

A sample of 4 calculators is randomly selected from a group containing 15 that are defective and 47 that have no defects. What is the probability thatat least oneof the calculators selected is defective?

(Round your answer to four decimals)

There is no missing data