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Unformatted text preview: The probability that B occurs is .6. The probability that A and b occur is .3. Are A and B independent? 7. [10]. A jar holds 10 red marbles, 10 white marbles and 5 blue marbles. What is the probability of picking 2 red marbles? What is the probability of picking a red marble and a blue marble? 8. [10] Is time or money more variable? Why? Time money Mean 100 50 Standard deviation 9 6 9. [10]. The probability that U find parking is .3. The probability that I find parking is .3. The probability that U and I both find parking is .1. What is the probability that U or I find parking? 10. [5] What is the z score for x=20, when the mean of x=15 and the standard deviation of x = 5? 11. Calculate the covarian...
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 Spring '10
 VANDERHOFF
 Statistics, Standard Deviation, Variance

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