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Monthly sales have a mean of $10,000 and a standard deviation of $2,500. Profits are calculated...

Monthly sales have a mean of $10,000 and a standard deviation of
$2,500. Profits are calculated by multiplying sales by 80% and
subtracting fixed costs of $2,000. Find the expected monthly profit, and
the standard deviation of monthly profits.

Math   Statistics-And-Probability   
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