Question 91) Historical data indicates that only 20% of cable c

91) Historical data indicates that only 20% of cable customers are willing to switch companies. If a binomial process is assumed, then in a sample of 20 cable customers, what is the probability that exactly 2 customers would be willing to switch their cable?

A) 0.1

B) 0.04

C) 0.137

D) 0.206

E) 0.794

92) Historical data indicates that only 20% of cable customers are willing to switch companies. If a binomial process is assumed, then in a sample of 20 cable customers, what is the probability that no more than 3 customers would be willing to switch their cable?

A) 0.85

B) 0.15

C) 0.20

D) 0.411

E) 0.589

93) Historical data indicates that only 20% of cable customers are willing to switch companies. If a binomial process is assumed, then in a sample of 20 cable customers, what is the probability that between 2 and 5 (inclusive) customers are willing to switch companies?

A) 0.1369

B) 0.1746

C) 0.0377

D) 0.7350

E) 0.500

94) Properties of the normal distribution include

A) a continuous bell-shaped distribution.

B) a discrete probability distribution.

C) the number of trials is known and is either 1, 2, 3, 4, 5, etc.

D) the random variable can assume only a finite or limited set of values.

E) use in queuing.

95) Which of the following characteristics is true for a normal probability distribution?

A) The area under the curve is 1.

B) It is symmetrical.

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