Determine the binomial distribution whose mean is 9 and standard deviation is 3/2
Answers
Answer:
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Step-by-step explanation:
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The binomial distribution whose mean is 9 and standard deviation is 3/2 is .
Explanation:
Formula for binomial distribution :
, where x is a binomial random variable .
P(X=x) is the probability of getting x success in n trials .
p= probability of getting each success.
q= probability of getting each failure.
Mean and standard deviation for binomial is :
AS per given , (1)
and (2)
Put value of np from (1) in (2) , we get
Now , the formula binomial distribution becomes :
, where x is a binomial random variable .
# Learn more :
In a binomial distribution the probability of getting a success is 1/4 and standard deviation is 3 , then its mean is
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