The binomial distribution is symmetrical when:______________?
Correct answer: D. Both (b) & (c) but not (a)
- A. P > q
- B. P = 1/2
- C. Probability of success & probability of failure are equal
- D. Both (b) & (c) but not (a)
Explanation
A binomial distribution is symmetric when the success and failure probabilities are equal, so p = q = 1/2. Statements (b) and (c) express the same condition, making (d) correct.
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