[See Solution] If x is a discrete random variable with this cumulative distribution: F(a) = 0 ; a = 0.4 ; -2 ≤ a < 4.5 = 0.85 ; 4.5 ≤ a < 9 = 1 ;
Question: If x is a discrete random variable with this cumulative distribution:
F(a) = 0 ; a<-2
= 0.4 ; -2 \[\le \] a < 4.5
= 0.85 ; 4.5 \[\le \] a < 9
= 1 ; 9 \[\le \] a
What is the probability function of X?
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