Introduction to Statistics
PreQuiz 8

Poisson , Binomial, and Monomial Distributions
Objectives: You will be able find the probabilities for outcome of variables, using the Poisson, and multinomial distributions
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SHORT ANSWER. Write the word or phrase that best completes each statement or answers the question.
Solve the problem.
1) A recent survey found that 74% of all adults over 50 wear glasses for driving. In a random sample of 90 adults
over 50, what is the mean and standard deviation of those that wear glasses?
2) According to a recent study, 1 in every 6 women has been a victim of domestic abuse at some point in their
lives. Suppose we have randomly and independently sampled twenty

five women and asked whether they
have been a victim of domestic abuse at some point in their lives. Find the probability that at least 2 of the
sampled women have been the victim of domestic abuse at some point in their lives.
3) A naturalist leads whale watch trips every morning in March. The number of whales seen X, has a Poisson
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 Spring '11
 Lee
 Statistics, Binomial, Poisson Distribution, Probability theory, 20 minutes, 2 years, 1.3%

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