A recent survey conducted by the Allstate Foundation reported that 68% of teens admitted to texting while

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A recent survey conducted by the Allstate Foundation reported that 68% of teens admitted to texting while driving. A random sample of 40 teens is selected. Use the normal approximation to the binomial distribution to answer the following:

a. Calculate the mean and standard deviation for this distribution.

b. What is the probability that less than 29 teens of the 40 admit to texting while driving?

c. What is the probability that exactly 24 teens of the 40 admit to texting while driving?

d. What is the probability that more than 32 teens of the 40 admit to texting while driving?

e. What is the probability that 26, 27, or 28 teens of the 40 admit to texting while driving?

Distribution
The word "distribution" has several meanings in the financial world, most of them pertaining to the payment of assets from a fund, account, or individual security to an investor or beneficiary. Retirement account distributions are among the most...
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Business Statistics

ISBN: 9780321925121

2nd Edition

Authors: Robert A. Donnelly

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