Concept explainers
To find: The expected number of heads.
Answer to Problem 1.1E
The expected numbers of heads are
Explanation of Solution
Given:
The given information is as given:
The four coins tossed.
The possible outcome of four coins tossed are given as:
The expectation of the score is found by multiplying the score of each simple event by the probability of that event and adding up these products. Here is how the computation looks for the coins tossing experiments.
The probability of getting exactly one head is
So the expected number of heads is calculated as:
Therefore the expected numbers of heads are
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