# Question

Mark Underwood is a professor of Economics at Indiana University. He has been teaching Principles of Economics for over 25 years. Professor Underwood uses the following scale for grading.

Grade ........ Probability

A ..... 0.10

B ..... 0.30

C ..... 0.40

D ..... 0.10

F ...... 0.10

Calculate the expected numerical grade in Professor Underwood’s class using 4.0 for A, 3.0 for B, etc.

Grade ........ Probability

A ..... 0.10

B ..... 0.30

C ..... 0.40

D ..... 0.10

F ...... 0.10

Calculate the expected numerical grade in Professor Underwood’s class using 4.0 for A, 3.0 for B, etc.

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