Question

A toss of a 15-sided die is equally likely to be any integer between 1 and 15 inclusive. What is the expected value of the number tossed? Provide your answer to a single decimal point.

Answer 1

The Expected Value is 8.

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As with any arithmetic sequence, you can find the average of 1, 2, 3, ..., 15 by adding the first and last number and dividing the result by 2.