Statistics MCQs

Page No. 28

The mean, median and mode for binomial distribution will be equal when:______________?


ap= 0.5


bP 0.5


cp = 1


dNone of these


View Answer p= 0.5

Binomial distribution is negatively skewed when:__________________?


ap=0


b p>1/2


cp=1/2


dp=1/3


View Answer p>1/2

Binomial distribution has parameters:______________?


aThree


bTwo


cOne


dFour


View Answer Two

The variance of binomial distribution is always:________________?


aLess than mean


bEqual to mean


c Greater than mean


dEqual to standard deviation


View Answer Less than mean

Binomial distribution is symmetrical when:_________________?


a p = q


bp > q


cp > q


dnp > npq


View Answer p = q

The successive trials are with replacement in:________________?


a Hpergeometric distribution


bBinomial distribution


cGeometric distribution


dNone of these


View Answer Binomial distribution

Which of the following is not a condition of the binomial distribution ?


aOnly 2 possible outcomes


b Have constant probability


cMust have at least 3 trials


dTrials must be independent



if in a binomial probability distribution mean and variance are 6 and 2.4 respectively, then the parameters of this distribution are:____________________?


an = 10, p = 6/10


bn = 50, p = 6/50


c n = 10, p = 3/5


dn = 10, p = 2/5


View Answer n = 10, p = 3/5

In a binomial distribution, n = 20 and p = 3/5, then variance of this distribution ______________?


a60


b12


c4.8


d0


View Answer 4.8

Variance of binomial distribution is always:______________?


a Less than mean


bGreater than mean


cEqual to mean


dLess than equal to mean


View Answer Less than mean

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