An instructor always assigns final grades such that 20% are A, 40% are B, 30% are C,

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An instructor always assigns final grades such that 20% are A, 40% are B, 30% are C, and 10% are D. The grade point scores are 4 for A, 3 for B, 2 for C, and 1 for D.
a. Specify the probability distribution for the grade point score of a randomly selected student of this instructor.
b. Find the mean of this probability distribution. Interpret it. Distribution
The word "distribution" has several meanings in the financial world, most of them pertaining to the payment of assets from a fund, account, or individual security to an investor or beneficiary. Retirement account distributions are among the most...
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