A pediatrician records the heights of all his two-year-old patients. He plans to display their heights in centimeters with a histogram, using the intervals 70–74, 75–79, 80–84, 85–89, 90–94, and 95–99. Which of the following can be determined about these patients from the histogram? Select all that apply.
1. Distribution of heights within the different intervals
2. Average height of the two-year-old patients
3. Range of heights among the two-year-old patients