SSC CGL Tier-2 14th September 2018 Statistics

Instructions

For the following questions answer them individually

Question 51

The incomes of the employees in a state is assumed to be normally distributed with mean ₹15,000 and variance ₹900. The median of the distribution of the income is:

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Question 52

For a normal distribution, which of the following is true?

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Question 53

The mode of a geometric distribution with parameter p is:

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Question 54

Let $$M, M_d, M_o$$ denote mean, median and mode and $$Q_1, Q_2$$ and $$Q_3$$ quartile points. Which of the following is an absolute measure of skewness?

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Question 55

The second quartile for the following data 38, 39, 40, 52, 59, 67, 73, 77, 149, 248 is:

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Question 56

With reference to analysis of variance, which of the following statements is/are correct?
(I) Change of origin will affect the value of F .
(II) Change of scale will affect the value of F .

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Question 57

Which of the following is a sources of primary data?

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Question 58

For a distribution with mean, median, mode and standard deviation 25, 24, 26 and5 respectively, Karl Pearson’s coefficient of skewness equals to:

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Question 59

The product of partial regression coefficient $$b_{12.3} b_{23.1} b_{31.2}$$ equals to:

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Question 60

If $$x_i \mid f_i, i = 1, 2, ..... n$$ is a frequency distribution with standard deviation 15 and mean 30,the coefficient of variation will be equal to:

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