EBook Problems Distrib Binomial

EBook Problems Set - Bernoulli and Binomial Experiments Problems

Problem 1

Which of the following assumptions is not necessary for a random variable to be binomial?

• Choose one answer.

(a) Equal probability of success for each member of the sample

(b) Each member of the sample is related to the other members

(c) Each member of the sample is a Bernoulli trial

(d) Independence

Answer

 (b)

Problem 2

Which of the following statements best describes the effect on the Binomial Probability Model if the number of trials is held constant and the p( the probability of "success") increases?

• Choose one answer.

(a) None of these statements are true

(b) The mean and the standard deviation both increase

(c) The mean decreases and the standard deviation increases

(d) The mean increases and the standard deviation decreases

(e) The mean and standard deviation both decrease

Answer

 (a)

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