Expected value of mean and standard deviation

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Reference no: EM1390569

A simple random sample of 6 recent graduates revealed the following information about their weekly incomes.

Graduates Weekly Income

A $250

B 270

C 285

D 240

E 255

F 290

a. What is the expected value of the average weekly income of all the recent graduates?

b. What is the expected value of the standard deviation for the population?

Reference no: EM1390569

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