Metalworks manufactures metal sheets via its factory that operates 5x a week. During quality control phase, on average, there is 1 hairline crack in every 10 square feet of metal produced. What is the...

Metalworks manufactures metal sheets via its factory that operates 5x a week. During quality control phase, on average, there is 1 hairline crack in every 10 square feet of metal produced. What is the probability that three or more cracks will appear in a 5x8 foot metal panel?
a. describe random variable X
b. what distribution does X follow? explain
c. What is the probability that three or more flaws will appear in a 5x8 foot metal panel?