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Three cards are drawn without replacement from the 12 face cards (jacks, queens, and kings) of an ordinary deck of 52 playing cards. Let X be the number of kings selected and Y the number of jacks. Find (a) the joint probability distribution of X and Y ; (b) P[(X, Y ) ? A], where A is the region given by {(x, y) | x + y = 2}.
during the past six months 73.2 of us households purchased sugar. assume that these expenditures are approximately
you take a trip by air that involves three independent flights. if there is an 77 percent chance each specific leg of
fx 3x2 - 2x3 for 0 lt x lt 1 with fx 0 if xlt0 and fx 1 if xgt 1 defines a distribution function. find the
In a group of six professors selected at random, what is the expected number of extroverts? What is the standard deviation of the distribution?
The population of lengths of aluminium-coated steel sheets is normally distributed with a mean of 30.05 inches and a standard deviation of 0.2 inches.
They want you to determine what the data indicate about this.In this problem I am having an issue trying to determine what equation to use to solve. Is this a one or two way ANOVA or should I just use a z-test to solve?
a test consists of 10 true or false questions. to pass the test a student must answer at least 8 questions correctly.
for a daily lottery a person selects a three digit number using the numbers from 0 to 9. numbers may be repeated. if
The number of stereos sold on each weekday. State the hypotheses and identify the claim, find the critical value(s), compute the test value, make the decision and summarize the results.
In a class of 40, 16 driver a car made outside the United States. What is the confidence interval for the total population of students at the 95% level?
a random variable has the following probability distribution x px 0 0.10 1 0.20 2 0.35 3 0.26 4 0.09 a compute the
If you wish to estimate a population mean with a sampling distribution error SE = 0.28 using a 95% confidence interval and you know from prior sampling that sigma^2 is approximately equal to 5.4, how many observations would have to be included in ..
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