The number of people entering a security check-in lineup in a 15-minute interval at a medium sized airport can be modeled by the following probability model: 620.1(201): m! P(X=$)= 1;:0,l,2,... Part (a) What does 20.7 represent in the probability model? Select the most appropriate explanation below. A A. 20.7 represents a weighted-average of the number of people who enter the a security check-in lineup every 15-minutes. A B. 20.7 represents how much skewed the distribution of values is. A C. 20.7 is the rate at which people enter the security check-in lineup every 15 minutes. A D. 20.7 is the standard deviation of the distribution of people entering the security check-in lineup every 15-minutes. A E. 20.7 represents the average number of people who enter the a security check-in lineup every 15-minutes. Part (b) Compute the probability that 16 people enter the security check-in lineup in a 15-minute interval. Use four decimals in your answer. P(X = 16) = I Ii! Part (c) Compute the probability that at least 4 people will enter the security check-in lineup in a 5-minute interval. Enter answer to four decimals. I ll! Part (d) In the past 15-minutes, you have been told that somewhere between 13 and 19 people, inclusive. have entered the security lineup. Compute the probability that this uncertain number is 17. E (use four decimals in your answer) Not sure how to perform some of the tasks? Click to see similar