Q.1
Measures of precision are also known as ___________
  • a) Measures of central tendency
  • b) Measures of dispersion
  • c) Measures of accuracy
  • d) Measures of statistics
Q.2
For symmetrical distribution, mean=median=mode.
  • a) True
  • b) False
Q.3
Given for an asymmetrical distribution, median=mean=what is the mode?
  • a) 12
  • b) 14
  • c) 16
  • d) 18
Q.4
Find the range of the following observations: 1,2,4,7,8,13.
  • a) 11
  • b) 12
  • c) 13
  • d) 14
Q.5
What is the mean deviation from the mean of the following observation:9,9,2,3,6,9,4?
  • a) 2.50
  • b) 2.62
  • c) 2.40
  • d) 2.57
Q.6
The square of the standard deviation is variance.
  • a) True
  • b) False
Q.7
The standard deviation isand the mean isWhat is the coefficient of variation?
  • a) 15
  • b) 14.29
  • c) 13.37
  • d) 12
Q.8
If the coefficient of variation of a data set A isand for data set B it iswhich data set is more consistent?
  • a) Data set A
  • b) Data set B
  • c) Both are equally consistent
  • d) Neither of them is consistent
Q.9
If the variance of the datais 23.Then, what is the variance of34?
  • a) 40
  • b) 42.55
  • c) 46.66
  • d) 49
Q.10
A set of observations xxxxhas a standard deviation =Each of these observations is added with a constant k. What is the new standard deviation?
  • a) 10
  • b) 8
  • c) 6
  • d) 4
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