A recent study by Allstate Insurance Co. finds that 78% of teenagers have used cell phones while driving (The Wall Street Journal, May 5, 2010). Suppose a random sample of 40 teen drivers is taken. What is the probability that fewer than 35 teens in the sample used cell phones while driving? (Round to three decimal places.)
A recent study by Allstate Insurance Co. finds that 78% of teenagers have used cell phones while driving (The Wall Street Journal, May 5, 2010). Suppose a random sample of 40 teen drivers is taken. What is the probability that fewer than 35 teens in the sample used cell phones while driving? (Round to three decimal places.)
Chapter8: Sequences, Series,and Probability
Section8.7: Probability
Problem 11ECP: A manufacturer has determined that a machine averages one faulty unit for every 500 it produces....
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A recent study by Allstate Insurance Co. finds that 78% of teenagers have used cell phones while driving (The Wall Street Journal, May 5, 2010). Suppose a random sample of 40 teen drivers is taken. What is the probability that fewer than 35 teens in the sample used cell phones while driving? (Round to three decimal places.)
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