Concept explainers
(a)
To find: the
(a)
Answer to Problem 31RE
0.0176
Explanation of Solution
The probability of a firm being owned by a woman is 0.26.
Trials are independent.
Let X is the number of women that are calling.
(b)
To find: the probability that neither of the first 4 calls would find a company run by a woman.
(b)
Answer to Problem 31RE
0.299
Explanation of Solution
Probability that none of first 4 calls are owned by a women is
(c)
To Find: the probability of the next call.
(c)
Answer to Problem 31RE
0.058
Explanation of Solution
Let X be the number of women that call before the first women who own the business are identified.
X is geom(0.26)
Therefore, there is 5.8 percent possibility that 6th person that call is the 1st women who own firm.
Chapter PIV Solutions
Stats: Modeling the World Nasta Edition Grades 9-12
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