1. For the following frequency distribution table

x	0	1	2	3
P(x)	0.1	k	0.3	0.2

1. Find the value of k
2. Calculate P( x = 3 ) = 0.2 P( x 0 ) =

c. Find the mean ( // ) and the variance ( or ) of the random variable x. H = E(X) = EXP(x)