Find the indicated probabilities using the geometric distribution, the Poisson distribution, or the binomial distribution. Then determine if the events are unusual. If convenient, use the appropriate probability table or technology to find the
probabilities.
A glass manufacturer finds that 1 in every 250 glass items produced is warped. Find the probability that (a) the first
warped glass item is the 12th item produced, (b) the first warped item is the first second, or third item produced, and (c)
none of the first 10 glass items produced are defective.
(a) P(the first warped glass item is the 12th item produced)
(Round to three decimal places as needed.)
(b) P(the first warped item is the first, second, or third item produced) =
(Round to three decimal places as needed.)
(C) P(none of the first 10 glass items produced are defective)
(Round to three decimal places as needed.)
Which of the events are unusual? Select all that apply.
A. The event in part (a) is unusual.
B. The event in part (b) is unusual.
C. The event in part (c) is unusual.
DD. None of the events are unusual.