SOLUTION: A factory parking lot has 160 cars in it, of which 35 have faulty emission controls. An air quality inspector does spot checks on the lot. What is the probability that at exactly

Algebra ->  Probability-and-statistics -> SOLUTION: A factory parking lot has 160 cars in it, of which 35 have faulty emission controls. An air quality inspector does spot checks on the lot. What is the probability that at exactly      Log On


   



Question 847248: A factory parking lot has 160 cars in it, of which 35 have faulty emission controls. An air quality inspector does spot checks on the lot. What is the probability that at exactly 3 of these 8 cars will have faulty emission controls?
Answer by swincher4391(1107) About Me  (Show Source):
You can put this solution on YOUR website!
p = 35/160 q = 125/160

Using binomial distribution:

(8 choose 3) * (35/160)^3 * (125/160)^5 = 0.1706