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A sample of 2,000 licensed drivers revealed the following number of speeding violations.
Number of Violations
Number of drivers
0
1910
1
46
2
18
3
12
4
9
5 Or more
5
--------
2000
a. What is the experiment?
b. List one possible event.
c. What is the probability that a particular driver has two speeding violations.
d. What concept of probability does this illustrate?
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Find at least what percentage of all homeowners in this city pay a monthly mortgage of 865 to 1,675.00.
Confirm whether given random variable is binomial distribution or not. If this experiment is finished with replacement, explain why.
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Find the standard error of the difference in sample means,
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The student with the 92 found a grading error on her exam and her correct grade was 95. There were no other grading errors. After correcting this student's paper, the five number summary for the midterm exam will be
Test hypothesis that annual incomes of corporate trainers in areas of more than 500,000 are considerably more than those in areas of less than 100,000. Make use of the 5% level of risk.
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