Of the bolts manufactured for a certain application, 90% meet the length specification and can be used immediately, 6% are too long and can be used after being cut, and 4% are too short and must be...

Of the bolts manufactured for a certain application, 90% meet the length specification and can be used immediately, 6% are too long and can be used after being cut, and 4% are too short and must be scrapped. a) Find the probability that a randomly selected bolt can be used (either immediately or after being cut). b) Find the probability that fewer than 9 out of a sample of 10 bolts can be used (either immediately or after being cut).