Statistics

Consider the following frequency distribution:

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Value	4	5	8	9	6	12	11
Frequency	5	$f_1$	$f_2$	2	1	1	3

Suppose that the sum of the frequencies is 19 and the median of this frequency distribution is 6.

For the given frequency distribution, let $\alpha$ denote the mean deviation about the mean, $\beta$ denote the mean deviation about the median, and $\sigma^2$ denote the variance.

Match each entry in List-I to the correct entry in List-II and choose the correct option.

List – I	List – II
(P) 7 f1 + 9 f2 is equal to	(1) 146
(Q) 19 α is equal to	(2) 47
(R) 19 β is equal to	(3) 48
(S) 19 σ2 is equal to	(4) 145
	(5) 55