Unit 3 - Activity 5 - Creating Histograms Worksheet Rules of Thumb: No fewer than 5 and no more than 15 intervals Interval width should be small enough to be useful (use easy numbers like 5, 10, 25, 100, etc) With continuous data: Create intervals so that no data falls into more than one interval (trick: add 0.5 to intervals) Intervals are the same sized Example 1 Sample Data: Examination Scores on a Biology Test 684 584 790 734 446 586 710 78- 804 546 T. 906 416 55( 75 494 60 Interval Tally Frequency Cumulative Relative Frequency Frequency a) Construct a Histogram of the data: b) Construct a Cumulative Frequency Histogram: c) Construct a Relative Frequency Histogram