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Patients arriving at a hospital outpatient clinic can select one of three stations for service. Suppose that physicians are assigned randomly to the stations and that the patients therefore have no station preference. Three patients arrive at the clinic and their selection of stations is observed.
a. List the sample points for the experiment.
b. Let A be the event that each station receives a patient. List the sample points in A.
c. Make a reasonable assignment of probabilities to the sample points and find P(A).
In a test of the effectiveness of a new battery design, 16 battery-powered music boxes are randomly provided with either the old design or the new version. Hours of playing time before battery failure were as follows:
the totals of the individual weights of garbage discarded by 62 households in one week have a sample mean of 24.443 lb.
Let X equal the number of people selected at random that you must ask in order to find someone with the same birthday as yours. Give the values of the mean, variance, and standard deviation of X?
Compare equations with one variable to equations with two variables. How are they alike? How are they different? What if an equation had three variables?
Also, 72 percent of the managers have MBA degrees. Using the probability formulas, find the proportion of employees who either have MBAs or are managers.
the distribution of iowa test vocabulary scores for seventh grade students in gary indiana is approximately normal with
Show that the rate of premium payment is Px + Py - Pxy, where Px denotes the rate of premium payment for a 1-unit whole life insurance on x with premiums payable for life.
A lottery has one $2000 prize, two $1000 prizes, and ten $500 prizes. Two thousand tickets are sold at $5 each. Find the expectation if a person buys two tickets.
a manufacturer claims that the batteries it makes will last 18 hours with a standard deviation of 1.5 hours. if the
Assuming the population is large, which sample size will give the smallest standard deviation to the statistic and select the numbers for the first five to be interviewed.
use the given information to find the p value. also use a 0.05 significance level and state the conclusion about the
explain clearly and in detail why a person that simultaneously flips 1023 pennies in the air will nevertheless
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