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In the experiment of rolling a balanced die twice, let X be the sum of the two numbers obtained. Determine the probability function of X.
The weights (in pounds) of a sample of five boxes being sent by UPS are: 12, 6, 7, 3, and 10.
Find the probabilities exactly one heart appears in my hand (of 13 cards); at least 7 cards from a single suit appear in my hand;
Random samples, each of size n = 10, were taken of the lengths in centimeters of three kinds of commercial fish, with the following results.
Can the classical approach to probability be used to determine P (less than 60 seconds between green lights)? Why or why not? (d) What about the relative frequency approach? If so, how? If not, why not?
The probability that a business owner will go bankrupt in it first year is .34. For 25 like businesses, find the probability first by using the binomial probability formula, and then by using the normal approximation.
Expireall Corporation is in finishing business. The following data took place during September: The standard cost card indicates that 2.0 feet are used in the production of each unit. The standard cost of each material is $4.50 per foot.
Design a simple yet thorough consent letter and acceptance form for a survey on a topic of your choice. Include the following information/items.
question suppose the monthly percentage changes in the tse 300 index from 1980 to 2000 are normally distributed with a
When would you use a hypothesis test for the difference in two population proportions at your place of employment, in your education, or in politics?
Using statistical software, determine the least squares line for these data. Use the equation of this line to estimate the number of persons per household.
A company is filling bags of rock salt to a level of 50 pounds. It believes that all bags are filled correctly, but would like to use a hypothesis test with an alpha of 0.05 to check this belief.
a random sample of 500 shoppers at sharpstown mall found that 120 favored longer shopping hours. is this sufficient
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