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posted by Anonymous .
6% of american drivers read the newspaper while driving if 300 drivers are selected at random find the probability that between 15 and 25 say they read while driving

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MathGuru
Mean = np = 300 * .06 = ?
Standard deviation = √npq = √(300 * .06 * .94) = ? (Note: q = 1  p)
Once you have calculated mean and standard deviation, use zscores to find the probability.
z = (x  mean)/sd
Find two zscores, using 15 for x and then using 25 for x.
Once you find the zscores, use a ztable to find the probability between the two scores.
I hope this will help get you started.
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