Delta Airlines quotes a flight time of 2 hours, 5 minutes for its flights from Cincinnati toTampa. Suppose we believe that actual flight times are uniformly distributed between2 hours and 2 hours, 20 minutes.a. Show the graph of the probability density function for flight time.b. What is the probability that the flight will be no more than 5 minutes late?c. What is the probability that the flight will be more than 10 minutes late?d. What is the expected flight time?

Answer:a) The graph of the probability density function for flight time is shown below. b) 1/2 c) 0 d) 130 minutesStep-by-step explanation:Let's deal with the flight times in minutes instead of hours, and let T be the random variable that represents the flight time. T is uniformly distributed between 120 minutes and 140 minutes. The probability density function for T is given by [tex]f(t)=\frac{1}{140-120}=\frac{1}{20}[/tex] for t in [120, 140] a) The graph of the probability density function for flight time is shown below. Delta Airlines quotes a flight time of 125 minutes for its flights from Cincinnati to Tampa. b) The probability that the flight will be no more than 5 minutes late is given by [tex]P(T \leq 125 + 5) = P(T \leq 130) = \int\limits_{120}^{130}\frac{1}{20}dt = \frac{1}{20}(130-120)= \frac{1}{20}(10) = \frac{1}{2}[/tex]   c) The probability that the flight will be more than 10 minutes late is given by [tex]P(T \geq 125 + 10) = P(T \geq 135) = 0[/tex] because the probability density function is zero for t outside of [120, 140] d) The expected flight time is given by [tex]E(T) = \frac{120+140}{2} = \frac{260}{2} = 130[/tex] minutes