Sonora makes the following histogram:
Image with alt text: An illustration of a histogram shows the vertical axis ranging from 0 to 5 in increments of 1. The horizontal axis shows the following ranges: 20 to 30, 30 to 40, 40 to 50, 50 to 60, and 60 to 70. Bars are shown representing the frequencies of the following ranges: 20 to 30: 3; 30 to 40: 3; 40 to 50: 1; 50 to 60: 2; 60 to 70: 1.