1. Class width:
The class width is given by the following expression:
The number of intervals are: 4
And the range is:
Replacing:
A) The class width is 74 (rounding to the smallest value).
2. Number of team attempted from 360 to 434:
B) The number of teams are: 4
3. According to the histogram, what is the total number of teams?
The total number of teams is given by:
C) 23.