If 6 of 20 new buildings in a city violate the building code, what is the...
If 6 of 20 new buildings in a city violate the building code, what is the probability that a building inspector, who randomly selects 4 of new building for inspection, will catch A) Catch two of the new buildings that violate the building code? (5 points) B) At least three buildings that violate the building code? (Hint: Use Binomial approximation to the Hypergeometric for this part). (5 points) C) A shipment of 25 tape recorders contains 1 defective ones. What is the probability that at most 15 defectives in 200 recorders? (Hint: use Poisson Approximation to Binomial). (5 points) In the inspection of cobalt plating in car door handles, 0.2 imperfections is spotted on the average per minute. Find the probability of spotting D) One imperfection in three minutes. (5 points) E) Between 3-5 imperfections in 3 minutes? (5 points) F) AL east two imperfections in 3 minutes? (5 points)