Question 5.5 The combined amount of time three customers spend waiting to receive service at a drive-through facility is a Gamma distributed random variable with parameter theta = 0.4 per minute. What...

Extracted text: Question 5.5 The combined amount of time three customers spend waiting to receive service at a drive-through facility is a Gamma distributed random variable with parameter theta = 0.4 per minute. What is the probability that 3 randomly selected customers will have a combined waiting time of at least 10 minutes? [Answer]


Extracted text: A car manufacturer gives a 2-year or 100,000-kilometre warranty on its new cars. Historically, 14% of the manufacturer's cars have required service under this warranty. What is the probability that the seventh car sold or more is the fifth car to require service under the warranty? [Answer]