Match the following from List-I to List-II

	List- I		List- II
(P)	The number of ways in which three distinct numbers can be selected from the set  $\{2^1,2^2,2^3,\mathrm{.......},2^{11}\}$  so that they form G.P. is	(1)	5
(Q)	The number of A.P. of positive integers having first term 5 and nth term 365 is (where  $n\ge 3$)	(2)	23
(R)	If there are ‘n’ circles such that no two have same radical axis and no three have same radical centre and numbers of radical centres are equal to number of radical axes in the system, then ‘n’ is	(3)	25
(S)	Let  $X_1,X_2,\dots ,X_{18}$  be eighteen observations such that  $\sum _{i=1}^{18}(X_i-\alpha )=36$ and  $\sum _{i=1}^{18}{(X_i-\beta )}^2=90$, where  $\alpha$ and  $\beta$ are distinct real numbers. If the standard deviation of these observations is 1 , then the value of   $|\alpha -\beta |$ is ____	(4)	4