1. Math Graphs

2. Histogram Histograms are used to display data using a horizontal or vertical rectangular bar that levels off at the appropriate level. Histograms are very similar to bar graphs except that the bars are connected and show a block of time or measurement. This bar graph shows how long children stayed in the swimming pool on a hot afternoon.

4. During which time period was the trail the most crowded? The least crowded? 7 P.M. – 10 P.M.; 1 P.M. – 4 P.M. Can you tell how many cyclists were on the trail at 5:00 P.M.? Explain. No; the histogram shows data for intervals of time, not individual times. On another day, 3 more cyclists were on the trail at 8 A.M., 5 fewer were on at 2:00 P.M., and 10 more were on at 5:30 P.M. How would the histogram for this day be different? The 7 A.M. – 10 A.M. bar would go up to 58; The 1 P.M. – 4 P.M. bar would go down to 20 and the 4 P.M. – 7 P.M. bar would go up to 70.

5. Draw your own Histogram Here is the information for your histogram. The local amusement park had visitors all day long on Saturday. From 10:00 – 12:00 100 visitors were at the park, from 12:00 – 2:00, 300 visitors were at the park, from 2:00 – 4:00 450 visitors were at the park, from 4:00 – 6:00, 350 visitors were at the park, and from 6:00 – 8:00, 200 visitors were at the park. Dont forget a title for your graph. Remember to label!