I'm having trouble trying to solve #8 (a.) and (b.). Please show steps and answers, labeled.

Jocelyne, of the Castellanos Corp is planning to market its' new makeup product; the "Y- Ho-Le Moisturizer". It will earn an annual profit of $4.5 million if it has high sales, $1.2 million if the sales are "so-so" and it will lose $2.3 million a year if the sales are low. The probabilities for the proceeding results are 0.32, 0.51 and 0.17 respectively. a. Let x be the profits (in millions of dollars) earned per year by the company. Set up the probability distribution for x. (3pts.) b. Find the average profit that the company will make per year and the standard deviation. (5pts.)