SOLUTION: The expected value of the numbers of heads obtained when three coins are tossed simultaneously

Question 1071807: The expected value of the numbers of heads obtained when three coins are tossed simultaneously
Answer by Fombitz(32388) (Show Source): You can put this solution on YOUR website!
There are 8 possible outcomes.
The distribution of heads for the eight outcomes is,
0H - 1
1H - 3
2H - 3
3H - 1
So the corresponding probability is,
0H:1/8
1H:3/8
2H:3/8
3H:1/8
The expected value is then,

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