The mean of a binomial distribution is always:____________________?
Correct answer: C. Greater than varince
- A. Equal to variance
- B. Less than variance
- C. Greater than varince
- D. None of these
Explanation
The binomial mean is np and its variance is npq. Since 0<q<1 in the standard case, np is greater than npq, so the mean is greater than the variance.
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