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3. Suppose that only 40% of all drivers in California regularly wear a seatbelt. A random sample of 500 drivers is selected. Assuming a binomial distribution, what is the probability that:
a. Between 180 and 230 (inclusive) of the drivers in the sample regularly wear a seatbelt? Hint: Use the BINOMDIST function in Excel.
b. Fewer than 175 of those in the sample regularly wear a seatbelt?
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Statistics and Probability-8129796.doc

. Suppose that only 40% of all drivers in California regularly wear a seatbelt. A random sample of 500
drivers is selected. Assuming a binomial distribution, what is the probability that:
a....

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