Question

An airplane company flies 39 airplanes daily. The CEO collects the following passenger counts for a random sample of airplanes from the fleet, as shown below. 123, 132, 158, 77, 158, 123, 132, 123, 158, 77 Assuming that the sample is representative of the entire fleet of airplanes, what would be the mean daily passenger count per plane?

Answer 1

To calculate the mean daily passenger count per plane, we need to add up the total number of passengers and divide by the number of planes. The total number of passengers is the sum of the passenger counts for all the planes in the sample: 123 + 132 + 158 + 77 + 158 + 123 + 132 + 123 + 158 + 77 = 1251. The number of planes in the sample is 10. So, the mean daily passenger count per plane is 1251/10 = 125.1. Therefore, the answer is 125.1.

Answer 2

To find the mean daily passenger count per plane, we need to calculate the average of the passenger counts for the sample.

We can do this by adding up all the passenger counts and dividing by the number of planes in the sample:

(123 + 132 + 158 + 77 + 158 + 123 + 132 + 123 + 158 + 77) / 10

= 1259 / 10

= 125.9

Therefore, the mean daily passenger count per plane is approximately 125.9 passengers.

Explanation: