The following histogram shows the exam scores for a Prealgebra class. Use this histogram to answer the questions.

Prealgebra Exam ScoresScores70.575.580.585.590.595.5100.5Frequency04812162024161714642The horizontal axis is labeled Scores and is divided into 6 equally sized classes, with tick marks given at the start and end of each class which are labeled as follows: the first tick mark is labeled 70.5, the second tick mark is labeled 75.5, the third tick mark is labeled 80.5, the fourth tick mark is labeled 85.5, the fifth tick mark is labeled 90.5, the sixth tick mark is labeled 95.5, the seventh tick mark is labeled 100.5.The vertical axis is labeled Frequency and is divided into 6 equally sized classes, with tick marks given at the start and end of each class which are labeled as follows: the first tick mark is labeled 0, the second tick mark is labeled 4, the third tick mark is labeled 8, the fourth tick mark is labeled 12, the fifth tick mark is labeled 16, the sixth tick mark is labeled 20, the seventh tick mark is labeled 24.Class 1For Class 1, the bar has a height of 16.Class 2For Class 2, the bar has a height of 17.Class 3For Class 3, the bar has a height of 14.Class 4For Class 4, the bar has a height of 6.Class 5For Class 5, the bar has a height of 4.Class 6For Class 6, the bar has a height of 2.HistogramA histogram with data for 6 classes.

Step3of5:

Find the class width for this histogram.