Determine the expected grade and variance

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Reference no: EM13110975

The following probabilities for grades in management science have been determined based on the past records:

Grade Probability

A .10

B .30

C .40

D .10

F .10

The grades are assigned on a 4.0 scale, where an A is a 4.0, a B a 3.0, and so on. Determine the expected grade and variance for the course.

Reference no: EM13110975

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