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Find the mean of probability distribution

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Reference no: EM131227097

A professor always assigns final grades such that 20% are A, 40% are B, 30% are C, 5% are D, and 5% are F. The grade point scores are 4 for A; 3 for B; 2 for C; 1 for D; and 0 for F.

A. Create the probability distribution table for grade points for this professor.

B. Find the mean of this probability distribution and provide and interpretation of this mean.

C. Find the variance and standard deviation.

Reference no: EM131227097

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