statistics MCQs – Page 8

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 Review each marked answer and report any item that may be outdated or unclear.

141. The time taken by an athlete to run a 400 mile race in SAF games ________________?
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A. Non of these

B. Random

C. Discrete data

D. Continuous data
142. Probability distribution of a statistics is called_________________?
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A. Parameter

B. Sampling

C. Data

D. Sampling distribution
143. Which of the following is not a correct statement about a Probability _________________?
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A. A value near 0 means that the event is not likely to occur/happens

B. It is the collection of several experiment

C. It must have a value between 0 and 1

D. It can be reported as a decimal or a fraction

144. When the two regression lines coincide there r is __________________?
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A. Zero

B. Great

C. More than zero

D. Less than zero

145. If y = 2 + 6x then value of y intercept is _________________?
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A. None

B. 6

C. 0

D. 2
146. If the standard deviation of the values 2, 4, 6, 8 is 2.58, then the standard deviation of the values 4, 6, 8, 10 is_______________?
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A. 2.33

B. 0

C. 2.58

D. 4.66

E. 5

147. Data being used by an agency which is originally collected by them are _______ data?
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A. Primary

B. Secondary

C. Discrete

D. Quantitative

148. Data in the Population Census Report is____________?
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A. Grouped data

B. Primary data

C. Secondary data

D. Ungrouped data

E. Arrayed data

149. _________ are the numbers obtained by some random process?
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A. Random table

B. Pack

C. Two- digit number take

D. Non of these

150. An events that contains the finite number point the sample space is called __________________?
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A. Random

B. Finite

C. values

D. Continuous

151. For discrete random X, the expectation of X i.e., E(x) is equal to:________________?
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A. ?x<sup>2</sup>P(x)

B. ?P(x)

C. One

D. ?x.P(x)
152. If the occurrence of excludes the occurrence of the other is called ________________?
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A. Mutually exclusive

B. Exchaustive

C. Probability

D. Likely
153. If any of the value in data set is zero then it is not possible (i.e. impossiblE. to compute_______________?
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A. Mode

B. Median

C. Geometric Mean

D. Harmonic Mean

E. Mean

154. Events occurring together without affecting each other are called:_________________?
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A. Mutually Exclusive events

B. Equally likely events

C. Independent events

D. Dependent events

155. In a frequency distribution the last cumulative frequency is 300, Median shall lie in____________?
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A. 130th item

B. 160th item

C. 140th item

D. 150th item
156. You asked five of your classmates about their height. On the basis of this information, you states the average height of all student in your university or college is 67 inches. This is an example of____________?
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A. Inferential Statistics

B. Descriptive statistics

C. Parameter

D. Population

157. In r x c table for test of Independence the degree of freedom is _____________?
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A. (r -1) (c -1)

B. r + c

C. ? r c ?

D. rc

158. The sum of the deviations about the mean is always______________?
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A. Zero

B. Negative

C. Range

D. Positive

E. Total Standard Deviation

159. A subset of the sample space is called _________________?
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A. Event

B. Space

C. Set

D. Sample point

160. A coin is so weighted that P (T) = 2P(H) then P(H) is _______________?
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A. 1

B. 2-Jan

C. 1/3

D. 3-Feb