In a certain city, 8 percent of the cars have a burned-out headlight. (a) What is the expected number that must be inspected before the first one with a burned-out headlight is found? (b)Â What is the probability of finding the first one within the first five cars? Hint: Use the CDF.
For patients aged 81 to 90, the probability is .07 that a coronary bypass patient will die soon after the surgery. (a) What is the expected number of operations until the first fatality? (b)Â What is the probability of conducting 20 or more operations before the first fatality? Hint: Use the CDF.