SSC CGL Tier-2 10th August 2022 Statistics

Instructions

For the following questions answer them individually

Question 81

If $$A, B$$ and $$C$$ are arbitrary events, then $$P(A \cap B \cap C)$$ equals to:

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Question 82

If the odds in favour of any random event A are 5 : 6, then the odds against the event are:

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Question 83

Which of the following is the most relevant for deriving a point estimate?

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Question 84

For the cumulative distribution function 

$$F(x) = \begin{cases}0; & x < -1\\\frac{1}{2}(x + 1)^2; & -1 \leq x \leq 0 \\1-\frac{(1-x)^2}{2}; & 0 \leq x \leq 1\\1; & 1 < x < \infty \end{cases}$$

the upper quartile point is

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Question 85

For ANOVA table

the F - statistics is:

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Question 86

If each observation is halved then the coefficient of quartile deviation

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Question 87

If the first quartile of data set 8,10,8,7,9 is 7.5, then the value of quartile deviation is

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Question 88

The interquartile range excludes ___ of the values.

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Question 89

For the frequency distribution of X number of grammatical mistakes per line is as follows.


The third factorial moment of X is:

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Question 90

If price-quantity are related for base year (0) and current year (1) are
$$\sum_{}:p_{0}q_{0} = 260,\sum_{}:p_{1} q_{0} = 395, \sum_{}:p_{0}q_{1} = 264, \sum_{}:p_{1}q_{1} = 422$$, then Marshall Edgeworth price index equals to

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