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

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b Have constant probability

✖


cMust have at least 3 trials

✓


dTrials must be independent

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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

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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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