In distributions that are skewed to the right, what is the relationship of the mean, median, and mode?
A) mode > mean > median B) median > mean > mode
C) mode > median > mean D) mean > median > mode
Q. 2According to government data, the probability that an adult was never in a museum is 16. In a random survey of 60 adults, what is the mean and standard deviation of the number that were never in a museum?
A) mean: 50.4 standard deviation: 3.09838668 B) mean: 9.6; standard deviation: 2.8397183
C) mean: 9.6; standard deviation: 3.09838668 D) mean: 50.4; standard deviation: 2.8397183
Q. 3An airline estimates that 91 of people booked on their flights actually show up.
If the airline books 63 people on a flight for which the maximum number is 61, what is the probability that the number of people who show up will exceed the capacity of the plane?
A) 0.0026 B) 0.0190 C) 0.0164 D) 0.0692
Q. 4A discrete variable can only yield whole-number values.
A) True B) False
Q. 5The set of possible values that a variable can take constitutes the data.
A) True B) False
Q. 6Administrators at a large university want to know the average debt incurred by their graduates. Surveys were mailed to 210 graduating seniors asking them to report their total student loan debt.
Identify the population, sample, and individuals in the study.
Q. 7A company purchases shipments of machine components and uses this acceptance sampling plan: Randomly select and test 26 components and accept the whole batch if there are fewer than 3 defectives.
If a particular shipment of thousands of components actually has a 6 rate of defects, what is the probability that this whole shipment will be accepted?
A) 0.7973 B) 0.5971 C) 0.1353 D) 0.2650
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