If a binomial random variable has expectation and variance , then the probability that is
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2 marks, −0.666666666666667StatisticsRandom variables and standard distributionsThe binomial distributionModerateabout 3 min
DSE 2017 Question 29: Random variables and standard distributions
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If a binomial random variable X has expectation 7 and variance 2.1, then the probability that X=11 is (A) 462(0.7)⁵(0.3)⁶ (B) 0 (C) 11(0.7)¹¹ (D) 462(0.7)⁶(0.3)⁵
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This question is on The binomial distribution, part of Random variables and standard distributions in Statistics.
The number of successes in a fixed number of independent trials.
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