Use Excel and the following information to answer questions.

A recent survey of 2,012 employees at Wilee found that 20% of them would leave their job if they could.Answer the questions based on a random sample of 15 employees. Assume binomial properties apply.

1)What is the probability that exactly three employees would leave Wilee?

A.0.2501

B.0.6171

C.0.7664

D.0.3641

2)What is the probability that five or fewer employees would leave Wilee?

A.0.9834

B.0.9389

C.0.1272

D.0.6458

3)What is the probability that 4 or more employees would leave Wilee?

A.0.2648

B.0.3518

C.0.2147

D.0.9542

Use Excel and the following information to answer questions.

Assume the number of cars sold at Jimmy's Car Emporium follows Poisson distribution and averages 2.9 per day.

4)What is the probability that no car sales will occur today?

A.0.0550

B.0.6251

C.0.7415

D.0.8696

5)What is the probability that less than two car sales will occur today?

A.0.0333

B.0.3148

C.0.2516

D.0.2146

6)What is the probability that no more than four car sales will occur today?

A.0.8318

B.0.2558

C.0.3549

D.0.6451

Use Excel and the following information to answer questions.

Researchers believe the amount of time a typical teenager spends watching TV every day is normally distributed, with a mean of 4 hours and 20 minutes and a standard deviation of 45 minutes.

7)What is the probability that a randomly selected teenager watches less than 5 hours of TV per day?

A.0.6842

B.0.8130

C.0.5213

D.0.1586

8)What is the probability that a randomly selected teenager watches between 6 to 7 hours of TV per day?

A.0.2057

B.0.0484

C.0.0129

D.0.1123

9)What is the probability that a randomly selected teenager watches exactly 5 hours of TV per day?

A.1.0000

B.0.3315

C.0.8047

D.0.0000

Use Excel and the following information to answer questions.

The time it takes to serve a guest at a restaurant (from the time the guest is seated until the guest leaves the table) is exponentially distributed, with the average time being 50 minutes.

10)What is the probability that a guest spends less than 50 minutes at the table?

A.0.4182

B.0.6321

C.0.7538

D.0.8952

11)What is the probability that a guest spends more than 80 minutes at the table?

A.0.6811

B.0.5000

C.0.2019

D.0.4934

12)What is the probability that a guest spends between 45 to 70 minutes?

A.0.7545

B.0.1600

C.0.2455

D.0.8421

Use the following information to answer Questions.

The time to fill a box of cereal at a food packaging plant is uniformly distributed and takes between 20 to 45 seconds.

13)What is the probability that it takes between 30 to 50 seconds to fill a box of cereal?

A.0.2500

B.0.5500

C.0.6000

D.0.8000

14)What is the probability that it takes less than 25 seconds to fill a box of cereal?

A.0.2000

B.0.5500

C.0.8000

D.0.4500