Busy airports have hundreds of flights departing every hour. In order to keep the air traffic moving, they have several runways. The list represents the number of airplanes that departed from a particular airport every hour.
11, 9, 1, 1, 5, 16, 27, 42, 44, 38, 35, 36, 46, 41, 31, 27, 46, 45, 42, 48, 48, 36, 28, 26
Fill in the following frequency table of the data.

Number of Airplanes
Frequency
Cumulative Frequency
0 – 10

11 – 20

21 – 30

31 – 40

41 – 50

Question

Busy airports have hundreds of flights departing every hour. In order to keep the air traffic moving, they have several runways. The list represents the number of airplanes that departed from a particular airport every hour.
11, 9, 1, 1, 5, 16, 27, 42, 44, 38, 35, 36, 46, 41, 31, 27, 46, 45, 42, 48, 48, 36, 28, 26
Fill in the following frequency table of the data.

Number of Airplanes
Frequency
Cumulative Frequency
0 – 10
 	 
11 – 20
 	 
21 – 30
 	 
31 – 40
 	 
41 – 50

anonymous · Answer

0-10: 4 airplanes; Frequency 4

11-20: 2 airplanes; Frequency 2

21-30: 4 airplanes; Frequency 4

31-40: 5 airplanes; Frequency 5

41-50: 9 airplanes; Frequency 9

Cumulative Frequency is the sum of the individual frequencies. So it is 24.