The following table gives the probability distribution of a discrete random variable x.

x| 0 1 2 3 4 5 6

P(x)| .11 .19 .28 .15 .12 .09 .06

Find the following probabilities.

a) P(1sxs4

b) Probability that x assumes a value less than 4

c) Probability that x assumes a value greater than 2.