7.9 Let y denote the number of broken eggs in a randomly selected carton of one dozen...

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7.9 Let y denote the number of broken eggs in a randomly selected carton of one dozen eggs. Suppose that the probability distribution of y is as follows:

y 0 1 2 3 4 p( y) .65 .20 .10 .04 ?

a. Only y values of 0, 1, 2, 3, and 4 have positive probabilities.
What is p(4)?

b. How would you interpret p(1)  .20?

c. Calculate P( y  2), the probability that the carton contains at most two broken eggs, and interpret this probability.

d. Calculate P( y  2), the probability that the carton contains fewer than two broken eggs. Why is this smaller than the probability in Part (c)?

e. What is the probability that the carton contains exactly 10 unbroken eggs?

f. What is the probability that at least 10 eggs are unbroken?

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Introduction To Statistics And Data Analysis

ISBN: 9780840054906

4th Edition

Authors: Roxy Peck, Chris Olsen, Jay L. Devore

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