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The 4 conditions required for a binomial distribution (Bernoulli trials) include all the following EXCEPT:
AThe probability p VARIES across trials
BThe number of trials n is fixed
CEach trial has exactly two outcomes
DThe trials are independent of each other
Answer & Solution
Correct answer: A. The probability p VARIES across trials
Binomial requires p to be the SAME across all trials. Other 3 conditions: fixed n, two outcomes per trial, independence. If p varies, the distribution is NOT binomial.
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