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In the game of? roulette, a player can place a ?$9 bet on the number 5 and have a 1/38 probability of winning. If the metal ball lands on 5, the player gets to keep the ?$9 paid to play the game and the player is awarded an additional ?$315. ?Otherwise, the player is awarded nothing and the casino takes the? player's ?$9. What is the expected value of the game to the? player? If you played the game 1000? times, how much would you expect to? lose? Note that the expected value is the? amount, on? average, one would expect to gain or lose each game.
A report states that 40% of home owners had a vegetable garden. How large a sample is needed to estimate the true proportion of home owners who have vegetable gardens to within 4% with 95% confidence?
A recent study gave the information shown in the table about ages of children receiving toys. The percentages represent all toys sold.
Describe each set of data with a histogram (use the same class intervals on both histograms) the mean, standard deviation.
In rectangular coordinate system, determine the distance between the points (-4,1) and (8,6).
a gallup poll released in december 2010 asked 1019 adults living in the continental us about their belief in the origin
Consider interest rates on accounts at a sample of local banks: 3.00%, 4.50%, 4.90%, 3.50%, 4.75%, 3.50%, 3.50%, 4.25%, 3.75%, 4.00%
Find the probability that an employee earns more than Rs. 18,000 per month and find the probability that an employee earns less than Rs. 15,000 per month.
in an experiment 50 individuals were told that they had just purchased a ticket to a concert and 50 were told that they
An electric carrier that automatically follows a tape track laid out on a factory floor is shown in Figure P9.16 (a) [15]. Closed-loop feedback systems are used to control the guidance and speed of the vehicle.
Explain in general terms the logic and procedures for testing her hypothesis.
Think of a specific problem of comparing two treatments preferably from your own field. How would you organize an experiment to find out which
A denver report shows 1st year teachers average income is $30,000. A teacher's union sample of 25 teachers showed an average salary of $27,000 with a sample standard deviation of $10,000. Compare the Denver report and the teachers union sample and..
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