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Average of daily profits

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A trader records daily profits of , , , and over days. What is the sample mean of these profits?

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A whole number, a decimal, a fraction like 3/8 or a percent.

Hint

Add all the values and divide by how many there are.

Solution
  1. Add the values: .
  2. Divide the sum by the number of days, which is .
  3. The mean is therefore .

Answer:

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