Kona's mother wanted to find out how many minutes her family spends on the phone for each call made. She put her data in a table after a week of observation as shown below. She asked Kona to make a histogram from the data.
Number of Calls
2
5
Minutes
1-5
6 - 10
11 - 15
16 - 20
21 - 25
26 - 30
31 - 35
36 -40
41 - 45
46 - 50
6
10
7
2.
1
0
1
Which chart has the correct setup for Kona's histogram?