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An urn contains nine white balls and 11 black balls. A ball is drawn and replaced. If the ball is white your opponent pays you 25 cents. If it is black you pay him 25 cents. You have one dollar and your opponent has 50 cents. Play continues until one of you is broke.
1. What is the probability that you lose all your money?
2. What is the expected number of times that you play prior to the game ending?
3. What is the answer to these two questions if both you and your opponent started with 75 cents?
Supposing that both populations are normally distributed, construct a 99% confidence interval for the ratio of the two population variances.
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Calculate (a) MAD, (b) MSE, and (c) MAPE for the following forecast versus actual sales figures.
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Bob gets tests grades of 86, 92, and 60 He gets an 90 on his final exam. Find the weighted mean if each tests counts for 20%, and the final exam counts for 40% of the final grade.
the weight of coffee in a can is normally distributed with a mean of 16.1 oz and standard deviation of 0.5 oz.a
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from 8 names on a ballot a committee of will be elected to attend a political national convention. how many different
7% chance of making $40,000; a 20% chance of making $10,000; and 70% chance of making $0. How much should you be willing to pay for this deal?
Find a 98% confidence interval for the percentage of all eighth graders who have used alcohol. Round the upper and lower bounds to three decimal places.
Use the Internet to find a website that shows an example or application correlation or regression in the area of your interest or in your profession. Discuss how correlation or regression was used and summarize your finding.
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