The weather in Rochester in December is fairly constant. Records indicate that the low temperature for each day of the month tend to have a uniform distribution over the interval 15° to 35°F. A business man arrives on a randomly selected day in December. (a) What is the probability that the temperature will be above 21°? answer: (b) What is the probability that the temperature will be between 17° and 30°? answer: (c) What is the expected temperature? answer:

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A: a) z0.10: PZ≤z=0.10          z=-1.28, from the Excel function, =NORM.INV(0.1,0,1)

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A: Given that  P(E) = 0.6 , P(E or F) = 0.9 ,  P( E and F)=0.50

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A: GivenA and B are mutually exclusive events P(A)=0.295P(B)=0.32

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A: GivenA and B are mutually exclusiveP(A)=0.35P(B)=0.25

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A:

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