For a certain distribution, if ?(X -20) = 25, ?(X- 25) =0, and ?(X-35) = -25, then is equal to:
A)20
B)25
C)-25
D)35

Name: For a certain distribution, if ?(X -20) = 25, ?(X- 25) =0, and ?(X-35) = -25, then is equal to: A)20 B)25 C)-25 D)35
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Question

Quizplus · Accepted Answer

The notation ?(X - a) = b suggests a function that outputs the difference between the mean of the distribution, X, and a specific value, a, as b. Given ?(X- 25) =0, it implies that the mean of the distribution, X, is 25.

For a Certain Distribution, If ?(X -20) = 25, ?(X-