AP EAMCET · Maths · Probability
If the mean and standard deviation of a binomial distribution are and , respectively, then the number of trials is ________
- A
- B
- C
- D
Answer & Solution
Correct Answer
(A)
Step-by-step Solution
Detailed explanation
Given, mean of a binomial distribution =20⇒ np=20 …i and standard deviation of a binomial distribution =4 ⇒ np1-p=4 …ii Put np=20…
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