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The following probabilities for grades in management science have been determined based on past records: Grade Probability A 0.1 B 0.3 C 0.4 D 0.1
The following probabilities for grades in management science have been determined based on past records:
Grade Probability
A 0.1
B 0.3
C 0.4
D 0.1
F 0.1
1.00
The grades are assigned on a 4.0 scale, where an A is a 4.0, a B a3.0, and so on. Determine the expected grade and variance for the course.
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