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Question: The Tri-State Pick 3 Most states and Canadian provinces have government-sponsored lotteries. Here is a simple lottery wager, from the Tri-State Pick 3 game that New Hampshire shares with Maine and Vermont. You choose a number with 3 digits from 0 to 9; the state chooses a three-digit winning number at random and pays you $500 if your number is chosen. Because there are 1000 numbers with three digits, you have probability 1/1000 of winning. Taking X to be the amount your ticket pays you, the probability distribution of X is
(a) Show that the mean and standard deviation of X are μX = $0.50 and σX = $15.80.
(b) If you buy a Pick 3 ticket, your winnings are W = X - 1, because it costs $1 to play. Find the mean and standard deviation of W. Interpret each of these values in context.
Draw a bell curve for each one of the following normal probability distributions: the standard, the sat and Binet Intelligence scale. Draw a separate bell curve for each one.
Translate the following arguments into symbolic form.- If teachers are allowed to conduct random drug searches on students only if teachers are acting in loco parentis, then if teachers are acting in loco parentis, then students have no Fourth Amen..
Find a 90% confidence interval for the ratio of the variances of the delay times for the two vendors. (b) What assumptions are needed to solve part (a)?
one concern about the depletion of the ozone layer is that the increase in uv light will decrease crop yields. an
If we consider these students representative of all students who might attend this summer school in other years, do these results provide evidence that the program is worthwhile?
Construct a 95% confidence interval for the population proportion of air travelers who are in favor of the airline's e-mail idea.
What kind of sampling design was used?- Give a 95% confidence interval for the difference in game playing by gender.
A sharpshooter is aiming at a circular target with radius 1. If we draw a rectangular system of coordinates with its origin at the center of the target, the coordinates of the point of impact, (X, Y), are random variables having the joint probabi..
The quotes provided by the fifteen firms are as shown in the accompanying table.- At the 0.05 level of significance, does it seem that the population median bids from the cities' firms could be the same?
A teacher gives a pre and post test to her students, she wants to know if there is a difference in the number of points students earned on their pretest and post test.
suppose bar-x is 67 ho mean 50 and ha meangt50. the p-value from the one-sample z-test is 0.03. the p-value meansa.
given that a normal distribution withnbspmu103 andnbspsigma20 given that you select a sample of n25a. what is the
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