Math Problem Statement
A manufacturer of game controllers is concerned that its controller may be difficult for left-handed users. They set out to find lefties to test. About 13% of the population is left-handed. If they select a sample of 6 customers at random in their stores, what is the probability of each of the outcomes described in parts a through f below? Question content area bottom Part 1 a) The first lefty is the fifth person chosen. The probability is
0.0745. (Round to four decimal places as needed.) Part 2 b) There are some lefties among the 6 people. The probability is
enter your response here. (Round to four decimal places as needed.)
Solution
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Math Problem Analysis
Mathematical Concepts
Probability
Geometric Distribution
Binomial Distribution
Complement Rule
Formulas
Geometric Distribution: P(first lefty on nth person) = (q)^(n-1) * p
Binomial Distribution: P(at least one lefty) = 1 - P(no lefties)
P(no lefties) = q^n, where q = 1 - p
Theorems
Complement Rule
Geometric Distribution Theorem
Binomial Distribution Theorem
Suitable Grade Level
Grades 9-12
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