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12. (10 points) The average stock price for companies making up the S&P 500 is $30, and the standard deviation is $18.20 (Bus
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Answer #1

Mean (1) = 30 Standard deviation (o)= 18.2 p(at least 40) = 1 - P(x<40) -- Plz <X-M 1 - (2 < 40-30 < 40-30 18.2 - 1 - P(Z <

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