In a binomial experiment the probability of success for females is 0.7. What is the probability...
In a binomial experiment the probability of success for females is 0.7. What is the probability of three successes in seven trials for females? a.0.082 b.0.097 c.0.227 d.0.185
Homework Answers
Solution
Given that ,
p = 0.7
q = 1 - p = 1 - 0.7=0.3
n = 7
Using binomial probability formula ,
P(X = x) = (n C x) * p x * (1 - p)n - x
P(X = 3) = (7 C 3) * 0.7 3 * (0.3)4
=0.0972
probability=0.097
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