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According to a survey conducted at the local DMV, 52% of drivers who drive to work...

According to a survey conducted at the local DMV, 52% of drivers who drive to work stated that they regularly exceed the posted speed limit on their way to work. Suppose that this result is true for the population of drivers who drive to work. A random sample of 14 drivers who drive to work is selected. Use the binomial probabilities table (Table I of Appendix B) or technology to find to 3 decimal places the probability that the number of drivers in this sample of 14 who regularly exceed the posted speed limit on their way to work is

a. at most four

Probability=

b. 7 to 9

Probability=

c. at least 7

Probability=

Math   Statistics-And-Probability   
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TOPIC:Use of the Binomial distribution to find the required probabilities.

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