SOLUTION: Find the variance for the values of n and p when the conditions for the binomial distribution are met. n = 500, p = 0.75 A. 125 B. 375 C. 93.75 D. 9.7

Algebra ->  Probability-and-statistics -> SOLUTION: Find the variance for the values of n and p when the conditions for the binomial distribution are met. n = 500, p = 0.75 A. 125 B. 375 C. 93.75 D. 9.7      Log On


   

Question 1086123: Find the variance for the values of n and p when the conditions for the binomial distribution are met.
n = 500, p = 0.75
A. 125
B. 375
C. 93.75
D. 9.7
Answer by mathmate(429) About Me  (Show Source):
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Question:
Find the variance for the values of n and p when the conditions for the binomial distribution are met.
n = 500, p = 0.75

Solution:
For a binomial distribution,
mean=np=375
variance=npq=500*.75*(1-.75)=93.75