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Questions › DSE › DSE 2015 › Q20
1 mark, −0.333333333333333Statistics › Random variables and standard distributions › The binomial distributionModerateabout 3 min

DSE 2015 Question 20: Random variables and standard distributions

Suppose we conduct nnn independent Bernoulli trials, each with success probability ppp. If kkk is such that the probability of kkk successes equals the probability of k+1k+1k+1 successes, then

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Suppose we conduct n independent Bernoulli trials, each with success probability p. If k is such that the probability of k successes equals the probability of k+1 successes, then (A) (n+1)p=n(1+p) (B) np=(n-1)(1+p) (C) np is a positive integer (D) (n+1)p is a positive integer

Random variables and standard distributions has come up 173 times in 7 exams since 2005.

What this question tests

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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Practise Random variables and standard distributionsMore on The binomial distribution

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Question from the DSE 2015 paper. Solutions are TestStop's own. Not affiliated with or endorsed by any examination authority.