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Pairs of people eating lunch together enter a cafeteria that has square tables, with one chair on each side. Each pair chooses a separate table at which they may sit next to each other or across from each other.
Suppose 100 such pairs enter the cafeteria today. Assuming that they choose seats randomly, construct an approx, imate distribution for the number of pairs that sit next to each other. How many of these pairs would you expect to be sitting across from each other?
With reference to Exercise 38, what can we say with 99% confidence about the maximum error if we use the observed sample proportion as an estimate of the proportion of all shoppers in the population sampled who use coupons?
Search an online academic virtual library or other websites such as salary.com to gather information. Use the information you find to evaluate the labor market of these countries ensuring that you address these topics:
a) What is the distribution and parameter(s) for N and for S?
suppose that u1 and u2 are iid discrete random variables each uniformly distributed on the set 0123456. find the pmf of
suppose that x is a random variable with moment generating function mxs and characteristic function cx s. let y ax b
Find two values that will give a symmetric 0.95 probability interval for the amount of high-grade gasoline demanded daily.
You operate a delivery service in your local area, but you are thinking of expanding to another market. You're concerned that you might need to set different prices in the new market because the cost of gas might be much different.
A study of 40 bowlers showed that there average score was 186 the standard deviation of the population is 6. Find the 95% confidence interval of the mean score for all bowlers.
Six balls are to be randomly chosen from an urn containing 8 red, 10 green, and 12 blue balls. (a) What is the probability at least one red ball is chosen?
the route used by a certain motorist in commuting to work contains two intersections with traffic signals. the
the weights of ripe watermelons grown at mr. smiths farm are normally distributed with a standard deviation of 2.7 lb.
Let Y denote the number of students on his bus. Compute the expectations and variances of X and Y:
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