What is the mean of binomial distribution ____________?
Correct answer: B. n x p
- A. X
- B. n x p
- C. n(1 - 1)
- D. ∑fx/∑f
Explanation
For a binomial distribution with n trials and success probability p, the expected number of successes is np. The other expressions are either the variable or a general mean formula, not the specific binomial result.
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