Calculate the double integral.
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d. 180
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Which statement best exemplifies the equiprobability bias?
a. "The Yankees have won 50 games and lost 22 so far this year, and the Brewers have won 31 and lost 41. There is a 50-50 chance that the Brewers will beat the Yankees today, because only one of two things can happen: either they win or they lose." b. "Seeing one of my friends win the lottery made me decide that I should play the lottery more often." c. "The weather forecast was wrong because it said there was a 60% chance of rain today, and it did not rain." d. "The probability of having a fever if I have an ear infection is the same as the probability that I have an ear infection if I have a fever."
Find the solution set of the equation. If the equation has no solution write ? and if the equation is an identity so state.
- 3 = 
A. {-2} B. {3} C. {9} D. {-3}
Solve the system by graphing.
A. (0, -3) B. (-1, -3) C. (-3, 1) D. (-2, -2)
Use the appropriate normal distribution to approximate the resulting binomial distribution.
Jorge sells magazine subscriptions over the phone. He estimates that the probability of his making a sale with each attempt is .11. What is the probability of Jorge making more than 10 sales if he makes 80 calls? Round your answer to four decimal places, if necessary. The probability is __________.