A production manager knows that 20% of components produced by a particular manufacturing process have some defect. What is the probability that exactly 10 items will be produced in order to observe fourth item?
P(10th item will be the 4th one with defect)
= P(3 defects in first 9 items)*P(10th item with defect)
= 9C3 * (0.20)3 * (0.80)6 * (0.20)
= 0.0352
A production manager knows that 20% of components produced by a particular manufacturing process have some...