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Archive for the ‘JSO’ Category

JSO SSC CGL Paper 3 : Part – 8

JSO SSC CGL Paper 3

Q106. In a distribution, the first four moments from the origin are 1, 4, 10 and 46 respectively. Then the nature of the distribution is

(a) symmetrical and mesokurtic

(b) negatively skewed and platykurtic

(c) negatively skewed and leptokurtic

(d) positively skewed and (more…)

Statistical Investigator CGL TIER 2 Paper 3 : Part – 7

Statistical Investigator CGL TIER 2 Paper 3 : Part – 7

Q91. The algebraic sum of deviations of a set of n values from their arithmetic mean is

(a) x

(b) 0

(c) 1

(d) None of these

Q92. The arithmetic mean (more…)

SSC CGL TIER 2 Statistical Investigator : Part – 6

SSC CGL TIER 2 Statistical Investigator  : Part – 6

Q76. The standard deviation of a series is 5.What should be the value of the fourth order central moment so that the distribution is mesokurtic?

(a) Less than 1875

(b) More than 1875

(c) Equal to 625

(d) Equal (more…)

Statistical Investigator SSC CGL TIER 2 Paper 3 : Part – 5

Statistical Investigator SSC CGL TIER 2 Paper 3 : Part – 5

Q61. In given distribution 1  The coefficient of variation is

(a) 72%

(b) 68%

(c) 48%

(d) 15%

Q62. The coefficient of variance of a data is 25% and the mean (more…)

Statistical Investigator. SSC CGL TIER 2 Paper 3, SSC CGL JSO

Statistical Investigator SSC CGL TIER 2 Paper 3 : Part – 4

Q46. Which of the following diagrams would be appropriate for cumulative frequency of a discrete variable?

(a) Step diagram

(b) Histogram

(c) Frequency curve

(d) Frequency polygon

Option: A.

Explanation: Step diagramme (more…)

JSO SSC CGL TIER 2  Paper 3 : Part – 3

JSO SSC CGL TIER 2  Paper 3 : Part – 3

Q31. The mean of a variable x having 50 observations is 45. If a new variable is defined by u=x +45, the mean of the new variable is

(a) 45

(b) 0

(c) 90

(d) 95

[showhide (more…)

Statistical Investigator SSC CGL TIER 2  Paper 3 : Part – 2

Statistical Investigator SSC CGL TIER 2  Paper 3 : Part – 2

Q16. What is the purpose of a summary table?

(a) This is the only way to present categorical data in numerical form.

(b) To see differences between or among categories.

(c) To sum the (more…)

Statistical Investigator SSC CGL TIER 2  Paper 3 : Part – 1

Statistical Investigator SSC CGL TIER 2 Paper 3 : Part – 1

Q1. The science of collecting, organizing, presenting, analyzing and interpreting data to                 assist in making more effective decisions is called:

(a) Statistic

(b) Parameter

(c) Population

(d) (more…)

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