1/ The following data represents the iron content in different rocks sampled at a construction site.

45, 45, 46, 46, 47, 51, 57, 60, 61, 62, 65, 67, 68, 68, 68, 68, 90

Use 4 classes to create a relative frequency histogram.

a. class width (Round to next whole number)

b. relative frequency table

c. relative frequency histogram

2/ Listed below are amounts of calories in a simple random sample of ten 4-ounce frozen yogurt servings obtained from a yogurt shop in Kentucky.

120121122124130132134144145148

Use the given data toconstruct a box-and-whisker plotandalso list the5-number summarybelow your plot.