Concept explainers
Find the probability that 11 of his first 12 pitches are balls.
Answer to Problem 22PPS
The probability is
Explanation of Solution
Given:
If a pitcher is just as likely to throw a ball as a strike, find the probability that 11 of his first 12 pitches are balls.
Concept Used:
Let b refers to ball and s refers to strike.
Find the probability by finding the term of the expansion
Calculation:
Let b refers to ball and s refers to strike.
Find the probability by finding the term of the expansion
Find the probability by expanding
From the expansion,
Therefore, the probability is
Thus, the probability is
Chapter 11 Solutions
Algebra 2
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