Can you help me solve (b) as well as(c) identify the classes and their frequencies?(d) which class has the highest frequency?(e) which class has the lowest frequency?

The following frequency histogram represents the IQ IDs of 7th Grade Students scores of a random sample of seventh-grade students. IQs are measured to the nearest whole number. The frequency of each class is labeled above O 47 48 each rectangle. Use the histogram to answers parts (a) through (9). 60 70 80 90 100 110 120 130 140 150 160 IQ scores (a) How many students were sampled? 200 students (b) Determine the class width. The class width is