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Question: A pair of dice is rolled. The sum of the faces on top is observed. What are the expectation, variance, and standard deviation of the observed sum? The Expectation and Variance Template attached to the main posting is optional and recommended.
Do you think a sample of 25 is large enough to give them the margin of error they want? If not, how large a sample do you suggest they take?
Scores on the ACT test have a mean of 21.1 and a standard deviation of 4.8. which is relatively better: a score of 1840 on he SAT or a score of 26.0 on the ACT test? why?
question 1a explain the methodology associated with a sample based survey scheme for the estimation of catch data for
The mean television viewing time for Americans is 15 hours per week (Money, November 2003). Suppose a sample of 40 Americans is taken to further investigate viewing habits.
A survey of 30 adults found that the mean age of a person's primary vehicle is 5.6 years. Assuming the standard deviation of the populaiton is 0.8 year, find the 99% confidence interval estimate for the population mean.
Assume duration of human pregnancies follow mound-shaped distribution with mean of 266 days and the standard deviation of 16 days.
Which of the following statements is true regarding a nonparametric test?
The house of representatives has a very controversial bill that will be going to vote. To help formulate his strategy on how to get the bill passed, the chairman of the committee that has been studying the bill wishes to know if there is a divisio..
The heights of 10 sixth graders are listed in inches: {54, 62, 54, 57, 60, 61, 53, 63, 59, 56}. Find the mean, median, mode, sample variance, and range.
Assume that the price of non-dividend paying stock is $32, its volatility is 30%, and the risk-free rate for all maturities is 5% per annum. Use derivagem to calculate the costs of setting up the following positions.
Either no change to the Objective function or a raise in the value of the objective function depends on the constraint.
what is the chance the average contents of the cans will be less than advertised and what will be the standard deviation of the number of men who help at home, based on the first survey
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