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Two random variables X and Y have the joint distribution, P(0, 0) = 0.2, P(0, 2) = 0.3, P(1, 1) = 0.1, P(2, 0) = 0.3, P (2, 2) = 0.1, and P(x, y) = 0 for all other pairs (x, y).
(a) Find the probability mass function of Z = X + Y.
(b) Find the probability mass function of U = X -Y.
(c) Find the probability mass function of V = XY.
Determine out the regression equation. Determine the estimated sales if 40 contacts are made.
a sample of 800 voters revealed that 52 of them would vote for a specific issue. create and interpret a 95 confidence
Explain the value of test statistic using t distribution for the given value. Illustrate value of the t test statistic if you are testing a hypothesis.
The function s(t) = ut + 1/2 gt^2 represents the distance traveled s meters in time t seconds when the initial velocity is u m/s and acceleration is g m/s^2.
airlines overbook tickets sales based on the assumption that a percnetage of passengers will not show on the day.
Utlizing binomial approximation to normal finding the normal model. A grower claims that only 13 percent of the strawberries he grows are unsatisfactory.
Compare population means or proportions to determine the relationship between variables.
during each day the probability that your computers operating system crashes at least once is 5 independent of every
The amount of income spent on housing is an important component of the cost of living. The total costs of housing for homeowners might include mortgage payments, property taxes, and utility costs (water, heat, electricity).
A health services provider has been reimbursed by a national health insurance organization for a large number of services. It appears that overpayments may have occurred on many of the reimbursements
An averaged department store sells 350 mens suits per year. The mens suit departments at a particular national chain of stores claim they sell more than the industry average.
flip a coin 60 times. record the outcome of each of the 60 flips in order from 1 to 60 using the tally sheet
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