Statistics MCQs

Page No. 29

What is the variance of binomial distribution __________________?


an p

✖


b np (1 – p)

✓


cnp/q

✖


d nq/p

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View Answer np (1 – p)

The sum of p and q is always:___________________?


a0

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b2

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c1

✓


d None of these

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View Answer 1

If in binomial distribution p ≠ q, the distribution is:___________________?


aPositively skewed

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bNegative skewed

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c May be positive skewed or negative skewed.

✓


dNone of these

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The binomial distribution is positively skewed when:________________?


ap > q

✖


bp < q

✓


cp = q

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dboth (a) and (b

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View Answer p < q

If 5 dice are rolled 96 times then N. =___________?


a5

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b96

✓


c5/96

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d96/5

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View Answer 96

If a Binomial experiment is repeated ‘N’ times then binomial frequency distribution is. _______________?


a N.{nx}px qn-x

✓


bN p q

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c N.{n/x}px qn-x

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dN.{n/x}p qn-x

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View Answer N.{nx}px qn-x

For a binomial distribution?


an must assume a number between 1 and 20 or 25

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b p must be a multiple of 10

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cThere must be at least 3 possible outcomes

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dNone of these

✓


View Answer None of these

If _________ then the distribution is positively skewed?


a p < q

✓


bq/p

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c p > q

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d p > 1/2

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View Answer p < q

Which of the following is not a requirement for binomial distribution ?


aConstant Probability of Success

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bOnly two possible outcomes

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cA fixed number of trials

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dEqually likely outcomes

✓



In a binomial distribution mean and variance is _________________?


aVariance > mean

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bMean < variance

✓


cVariance ≠ mean

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dNone of these

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View Answer Mean < variance

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