statistics MCQs – Page 63

Practise multiple-choice questions from statistics for competitive examinations and subject revision. Review each marked answer and report any item that may be outdated or unclear.

statistics Mcqs

1. sample linear regression 2. normal distribution 3. presentation of data 4. statistical inference 5. measures of location 6. basic statistics 7. correlation and regression 8. sampling 9. binomial and hyper geometric probability 10. index number 11. hypothesis testing 12. measures of dispersion

1241. What is the mean of binomial distribution ____________?
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A. X

B. n(1 1)

C. n x p

D. ?fx/?f

1242. For a binomial distribution with n = 15 as p changes from. 50 toward. 05 the distribution will__________?
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A. Become more positively skewed

B. Become more negatively skewed

C. Become symmetrical

D. All of the above.

1243. Successive trials in binomial distribution are:__________________?
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A. Independent

B. Non

C. Mutually exclusive

D. Equally Likely

E. Dependent

1244. When n becomes very large, binomial distribution tends to ______________?
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A. Standard dist

B. Poisson dist

C. Hyper-geometric distribution

D. Normal dist

1245. What is the variance of binomial distribution __________________?
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A. np/q

B. nq/p

C. np (1 p)

D. n p

1246. The binomial distribution is positively skewed when:________________?
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A. p > q

B. p < q

C. p = q

D. both (a) and (b

1247. In the binomial experiment, the outcomes of each trial maybe classified into ______________?
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A. Success

B. Failure

C. None of these

D. Success or Failure

1248. In a binomial probability distribution it is impossible to find______________?
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A. P(X < 0)

B. p(0 ? X? n)

C. P(X > 0)

D. P(X = 0)

1249. Binomial distribution has parameters:______________?
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A. Two

B. Three

C. Four

D. None

E. One

1250. If _________ then the distribution is positively skewed?
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A. p < q

B. p > 1/2

C. p > q

D. q/p

1251. There are ____________ parameter in Binomial distribution?
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A. n, q

B. q, p

C. n, p, q

D. n, p

1252. In a binomial distribution, n = 20 and p = 3/5, then variance of this distribution ______________?
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A. 60

B. 12

C. 4.8

D. 0

1253. Binomial distribution is symmetrical when P=___________________?
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A. n

B. q

C. 1 P

D. x

1254. Which of the following is not a requirement for binomial distribution ?
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A. A fixed number of trials

B. Only two possible outcomes

C. Constant Probability of Success

D. Equally likely outcomes

1255. The mean of binomial distribution is:__________________?
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A. ?np

B. np

C. ?npq

D. nq?

E. npq

1256. In a binomial distribution mean and variance is _________________?
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A. None of these

B. Variance ? mean

C. Variance > mean

D. Mean < variance

1257. In binomial experiment, the probability of success is denoted by __________________?
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A. P

B. 1 -P

C. q

D. P

1258. Binomial distribution has _______ parameter?
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A. 6

B. 3

C. 4

D. 2

1259. The mean and the variance are equal in________________?
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A. The hypergeometric distribution

B. The binomial distribution

C. The Poisson distribution

D. All probability distribution

1260. Which of the following is not a condition of the binomial distribution ?
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A. Have constant probability

B. Trials must be independent

C. Only 2 possible outcomes

D. Must have at least 3 trials

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