# Px 16 16 16 16 16 16 66 1 x px 16 26 36 46 56 66 216

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p(x)1/61/61/61/61/61/66/6 = 1x p(x)1/62/63/64/65/66/621/6 = 3.5x^2 p(x)1/64/69/616/625/636/691/6 = 15.1667The mean is 7/2 or 3.5The variance is 91/6 - (7/2)^2 = 35/12 = 2.916666...The standard deviation is the square root of the variance = 1.7078 Do not use rounded off values in the intermediate calculations. Only round off the final answer. SD formula for these tables is the sq root of x^2 x p(X) – U^2(U=mean)PRACTICE TESTAmong 350 randomly selected drivers in the 20 minus 24 age bracket, 7 were in a car crash in the last year. If a driver in that age bracket is randomly selected, what is the approximate probability that he or she will be in a car crash during the next year? Is it unlikely for a driver in that age bracket to be involved in a car crash during a year? Is the resulting value high enough to be of concern to those in the 20 minus 24 age bracket? Consider an event to be "unlikely" if its probability is less than or equal to 0.05.
A modified roulette wheel has 32 slots. One slot is 0, another is 00, and the others are numbered 1 through 30,respectively. You are placing a bet that the outcome is an even number. (In roulette, 0 and 00 are neither odd nor even.)
b.What are the actual odds against winning? The actual odds against winning are
c.When you bet that the outcome is an even number, the payoff odds are 1:1. How much profit do you make if you bet \$10 and win? If you win, the payoff is
d. How much profit should you make on the \$10 bet if you could somehow convince the casino
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