statistics MCQs – Page 11

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 Review each marked answer and report any item that may be outdated or unclear.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

201. For two independent random variables X & Y, Var (x y)=___________?
0

A. Zero

B. Var(X) Var (Y)

C. Var(X) + Var (Y)

D. Var (X)

202. The variance of randomvariable of x then var(x) = E[x-E[x]2 = E[________]?
0

A. (X A)2

B. (x u)2

C. E(x)

D. (x 4)2

203. The sampling error is the_____________?
0

A. Error caused by selecting a bad sample

B. Standard deviation multiplied by the sample size

C. Same as the standard error of the mean

D. Difference between the value of the sample mean and the value of the population mean

204. In a frequency distribution the last cumulative frequency is 500. Q3 must lie in_____________?
0

A. 275th item

B. 375th item

C. 150th item

D. 175th item

205. The joint probability is _______________?
0

A. The likelihood of two events happening given that another event has already ha

B. Based on two mutually exclusive events

C. The likelihood of two events happening together

D. Also called Prior probability

206. Which of the following Measure of Averages is not based on all the values given in the data set?
0

A. Arithmetic Mean

B. Geometric Mean

C. Median

D. Mode

E. Both C. and D.

207. The Geometric Mean of -2, 4, 03, 6, 0 will be______________?
0

A. None of these

B. 0

C. -3

D. 3

E. Cannot be Computed

208. The Harmonic Mean of any two numbers is________________?
0

A. a+b2

B. a+b

C. 2aba+b

D. ab???

209. The probability that the sum is odd if two dice are thrown:_________________?
0

A. Sep-36

B. Jun-36

C. Dec-36

D. 18/36

210. making a entrance slip in service hospital is the method of collection of data by______________?
0

A. none of these

B. Correspondents

C. Registration

D. Entry

211. The sum of squared deviation is least from_________________?
0

A. Mode

B. Mean

C. Standard Deviation

D. Median

212. If ?2=m4m22<3, the distribution is called______________?
0

A. Normal

B. Mesokurtic

C. Leptokurtic

D. Platykurtic

213. If Y=?8X ? 5 and SD of X is 3, then SD of Y is _______________?
0

A. 8

B. 24

C. None

D. 3

E. 5

214. The smallest individuals which constitute the entire population are called __________________?
0

A. Sample design

B. Sampling units

C. Sampling frame

D. Sample pop

215. Geometric means of X1 and X2 is________________?
0

A. X1X2????????

B. X1????+X2????

C. X1+X2????????

D. X1+X2

E. X1+X2x

216. The probability of getting at least one head when two balance coins are tossed once __________________?
0

A. 4-Feb

B. 3/4

C. 4-Apr

D. 4-Jan

217. For a random variable X, E(X) is_______________?
0

A. Harmonic Mean

B. Geometric Mean (GM)

C. Arithmetic Mean (AM)

D. Non

218. A random variable is that whose value is determined by the outcome of _________________?
0

A. Experiment

B. Trial

C. event

D. Random experiment

219. If P(B/A)= 0.25 and P(A?B) = 0.2 then P(A) will equal to _______________?
0

A. 0.45

B. 0.8

C. 0.05

D. 0.75

220. A measure of dispersion is always ________________?
0

A. Positive

B. Zero

C. Negative

D. Infinity

Previous Next

Showing 201 to 220 of 1376 mcqs