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Early probability theory owes a debt to Chevalier de Mere, a rich Frenchman who liked gambling. More importantly for our story, he was an acquaintance of Blaise Pascal. De Mere played a gambling game in which he bet that he could throw a six in four throws of a die. His empirical evidence suggested that this game was biased slightly in his favor, so that in the long run he won slightly more often than he lost, and hence made money. Later de Mere became interested in a game where he rolled two dice and bet that he would roll double six at least once in 24 throws. He came up with 24 since there were 6 times as many possibilities for the outcome of two dice as there are of one, so he figured it would take 6 times as many throws to reach a game that was again slightly in his favor. But to check himself, he asked Pascal to do the computations for him. Follow in Pascal's footsteps and determine the probability of winning each of these games. In fact, you should be able to do this at least two different ways (using two different distributions).
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All standard IQ test scores are normally distributed and are set up so that the mean score is 100. However, the standard deviation differs from test to test.
Are the livability rankings related to a city's economic status?
truck tire life is normally distributed with a mean of 60000 miles and a standard deviation of 4000 miles. what is the
In regression equation, the value of y-intercept indicates the value of Y when the value of X is zero.
in the game of keno if you make a 1 bet on a pair of numbers you have a 94 chance of losing and thus losing your one
The data table below tabulates a pizza parlor's advertising expenditures and sales for 8 consecutive quarters. The marketing manager wants to know how much of an impact current advertising will have on sales two quarters from now.
For following set of scores, prepare a frequency distribution, a histogram, and a stem-and-leaf display for each variable. Also calculate the mean, the median and the standard deviation of each score.
Construct a 90% confidence interval to estimate the difference of (average number of gallons sold on weekdays - average number of gallons sold on weekends). Assume the population standard deviations are the same for both weekdays and weekends.
1. An investment account is advertised as offering an interest rate of 15% p.a. compounded monthly. (a) Find the effective interest rate per annum. (b) Use the Excel function EFFECT to find the effective rate.
score-s-up is a company that helps students improve their test scores on college entrance exams. they advertise that
Which of the following pH values is nearest to the isoelectric point (the point at which the overall net charge is zero) for this amino acid: 1.1, 5.3, 12.2? Explain your answer.
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