18. Five mark exercise problem I

If \(A\) is an event of a random experiment such that \(P(A) : P(\overline A) = 17 : 15\) and \(n(S) = 640\) then find (i) \(P(\overline A)\) (ii) \(n(A)\).

 

Answer:

 

(i) \(P(\overline A) =\) $\frac{i}{i}$

 

(ii) \(n(A) =\)