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1. Find the probability distribution for x = the sum of a fair, four sided die and and fair, sixsided die. b) for x from problem 1, find the probability of having the sum be at least four. c) for x from problem 1, find the probability for the sum being at most 8.
2. Find the probability that the sum is exactly 4 twice, when rolling the two dice 7 times
3. Find the probability that the sum is 10 for the first time, happens on the 20th roll of the two dice
A side effect of a certain anesthetic used in surgery is the hiccups, which occurs in about 10 percent of the cases. If three patients are scheduled for surgery today and are to be administered this anesthetic, compute the probability that
A researcher wants to determine a 95% confidence interval for the mean number of hours that UMKC students spend doing homework per week.
The residuals for Alaska in the original regression is above 50. Explain why it is not generally informative to judge the unusualness of an observation purely by the magnitude of its residual?
The delivery times and the number of cases delivered were recorded in the delivery file: Develop a regression model to predict delivery time, based on the number of cases delivered.
Shaver Manufacturing, Inc., offers dental insurance to its employees. A recent study by the human resource director shows the annual cost per employee per year followed the normal probability distribution, with a mean of $1,280 and a standard deviati..
For each of the following situations, indicate the appropriate measure, incidence rate or prevalence rate and the numerical value of the rate.
annual pay an employment information service claims the mean annual pay for the full-time male workers over age 25 and
In studying the behavior of air support roofs, the random variables X, the inside barometric pressure (in inches of mercury) and Y, the outside barometric pressure are considered. Assume that the joint density is given by
The winning team's scores in 9 high school basketball games were recorded. If the sample mean is 9.8 points and the sample standard deviation is 0.15 points, find the 98% confidence interval of the true mean.
the effect of twitter on college
State which of the three diet colas (marked as A, B or C) he or she prefers. Draw a tree diagram depicting the sample space outcomes for the test results.
The customers arriving between 0 and 1 have to wait until the store opens. Suppose X is the total times that these customers have to wait. Calculate Var(x).
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