SOLUTION: Suppose we have a bag with $10$ slips of paper in it. Eight slips have a $7$ on them and the other two have a $9$ on them. What is the expected value of the number shown when we d

Question 1208667: Suppose we have a bag with $10$ slips of paper in it. Eight slips have a $7$ on them and the other two have a $9$ on them.
What is the expected value of the number shown when we draw a single slip of paper?
Answer by ikleyn(52878) (Show Source): You can put this solution on YOUR website!
.
Suppose we have a bag with 10 slips of paper in it. Eight slips have a 7 on them and the other two have a 9 on them.
What is the expected value of the number shown when we draw a single slip of paper?
~~~~~~~~~~~~~~~~~~~~~~

The probability to draw "a 7" is 8/10.

The probability to draw "a 9" is 2/10.


The expected value is  E =  +  =  =  =  = 7 = 7 = 7.4.    ANSWER

Solved.

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