Suppose you can hit the center of a dartboard (i.e., get a bullseye) with probab

Question

Suppose you can hit the center of a dartboard (i.e., get a bullseye) with probability 0.1. Consider the number of throws it takes you to get your first bullseye. Select the most appropriate probability distribution to model this random variable.

a) binomial

b) geometric

c) negative binomial

d) hypergeometric

e) Poisson

A girl scout is going door to door selling cookies. Consider the number of houses she must visit to obtain 10 cookie orders. Select the most appropriate probability distribution to model this random variable.

a) binomial

b) geometric

c) negative binomial

d) hypergeometric

e) Poisson

Your friend has 10 candy bars, of which 3 contain peanuts and 7 do not contain any nuts. She decides to randomly divide the candy bars between the two of you. Consider the number of candy bars you get that do not contain any peanuts. Select the most appropriate probability distribution to model this random variable.

a) binomial

b) geometric

c) negative binomial

d) hypergeometric

e) Poisson

Explanation / Answer

1. Negative binomial.

2. Geometric.

3. Binomial.

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