A textile manufacturing process finds that on average, six flaws occur per every 140 yards of material produced

a. What is the probability of exactly five flaws in a 140-yard piece of material? (Do not round intermediate calculations. Round your final answers to 4 decimal places.)
b. What is the probability of no more than two flaws in a 140-yard piece of material? (Do not round intermediate calculations. Round your final answers to 4 decimal places.)
c. What is the probability of no flaws in a 35-yard piece of material? (Do not round intermediate calculations. Round your final answers to 4 decimal places.)