1.
The p.d.f. of a random variable x is given by f(x)=14af(x) = \frac{1}{4a}, 0<x<4a0 < x < 4a, (a>0)(a > 0), =0= 0 otherwise and P(x<3a/2)=kP(x>5a/2)P(x < 3a/2) = kP(x > 5a/2), then k=k =