Question

Two coins are tossed.Let T the number of tails that occur

a.Construct the probability distribution for the random variable T.

b. Construct The probability histogram.

Answer 1

a) the number of possible outcomes are; HH HT TH TT

The distribution of tails is ;

number of tails 0 1 2

probability 0.25 0.5 0.25

b) histogram