Question

The histogram shows the lengths of flight delays at several airports. How many flights were​ delayed?
Flight Delays
1
2
3
4
5
6
7
8
0
2
4
6
8
10
Hours
Frequency



A histogram is titled Flight Delays. A horizontal axis is labeled Hours from 0 to 8. A vertical axis is labeled Frequency from 0 to 10. The histogram contains vertical bars of width 1. The heights of the vertical bars are as follows, where the hours are listed first and the frequency is listed second: 0 to 1, 9; 1 to 2, 1; 2 to 3, 0; 3 to 4, 1; 4 to 5, 5; 5 to 6, 0; 6 to 7, 1; 7 to 8, 0.
Question content area bottom
Part 1
The number of flights that were delayed is
  
enter your response here.

Answer 1

To find the total number of delayed flights, we need to sum the frequencies of the flights that experienced delays.

Based on the histogram data you provided, here are the frequencies for each hour interval:

- 0 to 1 hours: 9 flights
- 1 to 2 hours: 1 flight
- 2 to 3 hours: 0 flights
- 3 to 4 hours: 1 flight
- 4 to 5 hours: 5 flights
- 5 to 6 hours: 0 flights
- 6 to 7 hours: 1 flight
- 7 to 8 hours: 0 flights

Now, we add these frequencies together to get the total number of delayed flights:

\[
9 + 1 + 0 + 1 + 5 + 0 + 1 + 0 = 17
\]

Therefore, the total number of flights that were delayed is **17**.