To check the accuracy of a particular weather forecaster, records were checked only for those days when
Question:
a. If the forecaster is accurate, what is the appropriate value of p, the probability of rain on one of the 25 days?
b. What are the mean and standard deviation of x, the number of days on which it rained, assuming that the forecaster is accurate?
c. Calculate the z-score for the observed value, x = 10.
d. Do these data disagree with the forecast of a "30% probability of rain"? Explain.
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Related Book For
Introduction To Probability And Statistics
ISBN: 9781133103752
14th Edition
Authors: William Mendenhall, Robert Beaver, Barbara Beaver
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