8. In certain experiments, the error made in determining the density of a substance is a random variable having a uniform density with a = -0.015 and B = 0.015. Find the probabilities that such an error will a. fall between -0.002 and 0.003 b. exceed 0.005 in absolute value 9. A basketball team has a 70% free-throwing percentage. a. Write a formula for the exact probability that out of their next 100 free throws, they will make between 75 and 80. Assume the throws are independent. You do NOT need to solve the formula. b. Using an appropriate approximation, estimate the probability asked for in part (a)