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Of nine executives in a business firm, four are married, three have never married, and two are divorced. Three of the executives are to be selected for promotion. Let Y1 denote the number of married executives and Y2 denote the number of never-married executives among the three selected for promotion. Assuming that the three are randomly selected from the nine available, find the joint probability function of Y1 and Y2.
what results in your departments seem to be correlated or related to other activities? how could you verify this?
What is the difference between strong negative and strong positive correlation? What does zero correlation tell you? Can you share a relationship between two variables that is typically negative?
a random sample of 64 bearings produced by a machine has a mean diameter of 2.5 inches with a standard deviation of 0.1
a hand of 13 cards is dealt at random and without replacement from an ordinary deck of 52 playing cards. find the
A farmer in Iowa owns 45 acres of land. He is going to plant each acre with wheat or corn. Each acre planted with wheat yields $200 profit, requires 3 workers, and requires 2 tons of fertilizer; each with corn yields $300 profit, requires 2 worker..
describe the importance of tchebysheffs theorem to the ability to find bounds of
If a complete failure occurs, calculate the probability that the fault occurred in:
there is a hot thermal reservoir and a cold thermal reservoir separated by a rod. conduction takes place between the
For those exiting in the first 5 years only the employee's own contributions with interest are returned. Find an equation to determine the contribution rate c.
you have just received an inheritance of 10000 and you decide that you should invest the money rather than blow it on
If 134 out of a random sample of 235 college students expressed an intent to vote, can we reject the aide's estimate at the 0.05 level of significance? Perform a one-tailed test.
At the end of two weeks, she has traveled both routes five times and can compare their average commuting times. Why should she not use the t -tools for two independent samples? What should she use?
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