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Please help me solve the attached problems.

Please help me solve the attached problems.
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Solution is attached. I have done it on word file... View the full answer

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1.) The mean =66.15
The standard deviation= 16.90686
2.) (a) Expected value of C is E(C)= 0 0.7 + 1 0.1+ 2 0.15+ 3 0.05= 0.55
To calculate standard deviation of C we proceed as follows:
E(C2)= 02...

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