In a poll conducted by the General Social Survey, 81% of respondents said that their jobs were stressful. Let Random Variable X represent number of respondents who find their job stressful. Ten workers are chosen at random. Using Binomial Distribution

a. Find the probability that exactly 7 respondents find work stressful

b. Find probability that less than 5 respondents find work stressful

c. Find probability that more than 3 find work stressful

***(Excel Work or Written/problems Work)***