4.2 Suppose that 64% of new hatchback cars sold in the Western Cape are made by German car manufacturers. A random sample of 9 purchases of new hatchback cars is selected. Determine the probability that 5 of those selected purchases are made from German car
manufacturers. (4)
4.3 The quality control manager of Raheems Cookies is inspecting a batch of chocolate-chip cookies that has just been baked. It is known that the number of chocolate-chip parts per cookie has a Poisson distribution. If the production process is in control, the mean number of chocolate-chip parts per cookie is 6. What is the probability that in any particular cookie
inspected, 5 chocolate-chip parts will be found?