Before boarding an airplane, the airport screens bags for forbidden items, and the machine is supposed to respond by sending out an alert to the TSA employees when a forbidden item is detected. Suppose that 5% of bags contain forbidden items. If a bag contains a forl'ndden item, then there is a 98% chance that the. machine will send out an alert. Also, if a bag does not contain a forbidden item5 then there is an 8% chance that the machine will send out an alert. Construct a probability tree. lit-That is the probability that a randomly selected bag will cause the machine to send out an alert