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A pharmacist receives a shipment of 23 bottles of a drug and has 3 of the bottles tested. If 6 of the 23 bottles are contaminated, what is the probability…
In the United States, 44% of the population has type O blood. Suppose a random sample of 12 persons is taken. Find the probability that at most 6 of the…
The amount of time that a union stays on strike is judged to follow an exponential distribution with a mean of 10 days. a. Find the probability that a strike…
For a request to use the campus computing cluster, and knowing that your jobs' durations are normally distributed with a mean of one hour and a standard deviation of 10…
The average salary of a male full professor at a public four-year institution offering classes at the doctoral level is \$109628. For a female full professor at the same kind…
A data set has a mean of 1,200 and a standard deviation of 80. a. Using Chebyshev's theorem, what percentage of the observations fall between 880 and 1,520? (Do not…
The lengths of 3 inch nails manufactured on a machine are normally distributed with a mean of 3 and a standard deviation of .009. The nails are either shorter than…
Newborn Elephant Weights. New born elephant calves usually weigh between 200 and 250 pounds until october 2006, that is. an asian elephant at the Houston (Texas) zoo gave birth to…
The mean amount spent by all customers at an organic food market is estimated to be \$48, and the standard deviation is estimated to be \$12. According to Chebyshev's Theorem,…
A contractor decides to build homes that will include the middle 80% of the market. If the average size of homes built is 1810 square feet, find the maximum and…
