SSC CGL Tier-2 10th August 2022 Statistics
For the following questions answer them individually
SSC CGL Tier-2 10th August 2022 Statistics - Question 41
If A and B are mutually exclusive, the general addition rule is:
SSC CGL Tier-2 10th August 2022 Statistics - Question 42
Two random variables X and Y are said to be independent if:
SSC CGL Tier-2 10th August 2022 Statistics - Question 43
The value of k so that following is probability mass function
is
SSC CGL Tier-2 10th August 2022 Statistics - Question 44
If moment generating function of discrete random variable X is $$(q + pe^{t})^{n}$$, then $$E(X^{2})$$ equals to
SSC CGL Tier-2 10th August 2022 Statistics - Question 45
The standard deviation of Y is double of standard deviation of X. The correlation coefficient between X and Y is 0.5. The acme angle between lines of regression is
SSC CGL Tier-2 10th August 2022 Statistics - Question 46
If mean and mode of the distribution is 32 and 21, then the distribution:
SSC CGL Tier-2 10th August 2022 Statistics - Question 47
To estimate the average work experience of MBA students at a management institute, five students are selected at random from each type of background, say commerce, science and engineering. This type of sampling is called:
SSC CGL Tier-2 10th August 2022 Statistics - Question 48
Which of the following options is correct when data is classified on the basis of attributes?
SSC CGL Tier-2 10th August 2022 Statistics - Question 49
If the third quartile of the following data set 7,10,7,8,9 is 9.5, then the value of quartile deviation is:
SSC CGL Tier-2 10th August 2022 Statistics - Question 50
The arithmetic mean of the following frequency distribution of number of members in family in the society
is
