I have done part A but think i am way off. Not even sure what distrubition rules i can follow.
Edit from my notes I have found this to be a cumulutive prob function.
K= 1 I get 1-.75 = .25
K=2 1-.25 = .75
K=3 i get 1- 11/12 = 1/12
P(x < 3/2) U P( X > 1/2)
Working this out i get 1/2
Could someone confirm if this is correct please
Thanks in advance!