1)The following is a discrete probability distribution of cars sold daily at Mt. Olympic Used Car Sales. What is the average number of cars sold at this company each day?

XCars Sold 0 1 2 3 4

P(X) Cars Sold 0.05 0.05 0.6 0.2 0.1

A.1.25

B.2.00

C.2.25

D.3.75

2)10% of the computer parts from Cheap Cheap Cheap computer supplier are defective. What is the probability that in a sample of 10 computer parts more than three are defective? Assume binomial properties apply.

A.0

B..013

C..327

D..987

3)The number of calls coming into Big Tom's call center occurs with an average of four calls in one minute. Assume a Poisson distribution. What is the probability of no calls in a one minute interval.

A.0

B..018

C..628

D..992

4)The average height of students in Ms. Madison's class is 5 feet with a standard deviation of 0.5 feet. Assuming a normal distribution, what is the probability a student is shorter than 52 inches? Note: There are 12 inches in one foot.

A..919

B..549

C..263

D..091

5)Given that a store clerk spends an average of four minutes with her customer, and assuming an exponential distribution, find the probability the clerk spends five to six minutes with a random customer.

A..063

B..263

C..439

D.Unable to compute with data provided

6)The time it takes a rural postal service employee to travel his mail delivery route is uniformly distributed with a range of 55 to 120 minutes.What is the probability that the mail delivery route takes between 60 to 173 minutes?

A..243

B..493

C..692

D..923