Concept explainers
To find: The expected number of heads.
Answer to Problem 1.4E
The expected score is
Explanation of Solution
Given:
The given information is as given:
The die rolls with faces numbered
The possible outcome of a die rolls 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 rolls a die with faces number
The probability of getting any face of a dieis
So the expected score is calculated as:
Therefore the expected scoreis
As it is impossible to roll a
Chapter 15 Solutions
Algebra and Trigonometry: Structure and Method, Book 2
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