# recitation6 - distributed with standard deviation \$1000(a...

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Review and Examples Continuous Random Variables Continuous Probability Distributions The Normal Distribution The Standard Normal Distribution ( z ) Computing Probabilities for Normal Distributions 1. Given that z is a standard normal random variable, compute the follow- ing: (a) P ( - 1 . 76 < z < 0 . 78) (b) Find z such that the area to the right of z is 0.25. 1

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2. Suppose the average amount per year that American households spend for transportation is \$6300. Assume that the amount spent is normally
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Unformatted text preview: distributed with standard deviation \$1000. (a) What is the probability that a randomly selected household spends less than \$5000 per year on transportation? (b) What is the probability that a randomly selected household spends between \$6000 and \$7000 per year? (c) How much would a household have to spend per year to be in the bottom 10% of yearly transportation costs? 2...
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recitation6 - distributed with standard deviation \$1000(a...

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