Horse Racing. According to the Daily Racing Form, the probability is about 0.67 that the favorite in

Question:

Horse Racing. According to the Daily Racing Form, the probability is about 0.67 that the favorite in a horse race will finish in the money (first, second, or third place). In the next five races, what is the probability that the favorite finishes in the money

a. exactly twice?

b. exactly four times?

c. at least four times?

d. between two and four times, inclusive?

e. Determine the probability distribution of the random variable X, the number of times the favorite finishes in the money in the next five races.

f. Identify the probability distribution of X as right skewed, symmetric, or left skewed without consulting its probability distribution or drawing its probability histogram.

g. Draw a probability histogram for X.

h. Use your answer from part

(e) and Definitions 5.4  and 5.5 on pages 254 and 256, respectively, to obtain the mean and standard deviation of the random variable X.

i. Use Formula 5.2 on page 267 to obtain the mean and standard deviation of the random variable X.

j. Interpret your answer for the mean in words.

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Related Book For  book-img-for-question

Introductory Statistics

ISBN: 9781292099729

10th Global Edition

Authors: Neil A. Weiss

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