If you could answer both, I'd be grateful. I'll give a thumbs up, thanks. Only a brief explanation is needed.

A probability density function for the random variable X is given by p; = k( )' , where k is a constant. What value must k be if X takes on integer values between 1 and n? Hint: ) | = Oak= 2 Not yet answered 1 - (1 ) " Ob. k = 1 1-(2 ) " Oc. K= 3 ( 4 ) " Od. k = 3 1 - (1 ) " Oe. k= 1 1-(4)"A random variable has CDF given by A i = 0,1,2 Fi 1 i=3 if A = 0.56, then what is pz