Analyzing Tree Height Data

The video tutorial explains how data was collected from 40 trees along a freeway, with tree heights recorded to the nearest inch. A histogram is used to summarize the data, showing tree height intervals. The video details how to determine the minimum and maximum tree heights using the histogram, emphasizing that each class includes its lower boundary but not its upper. The minimum height is 60 inches, and the maximum is 99 inches.

How many trees were included in the data collection?

• 60

• 50

• 40

• 30

What is the purpose of the histogram in this study?

• To measure the width of the freeway

• To calculate the average tree height

• To summarize the tree height data

• To show the location of trees

What does each class in the histogram represent?

• The total number of trees

• A range of tree heights

• The average height of trees

• A single tree

Which height range does the first bar of the histogram represent?

• 65 to 69 inches

• 60 to 64 inches

• 70 to 74 inches

• 55 to 59 inches

In which interval would a tree height of 65 inches fall?

• 60 to 64 inches

• 75 to 79 inches

• 65 to 69 inches

• 70 to 74 inches

What is the minimum possible tree height recorded in the data?

• 65 inches

• 60 inches

• 70 inches

• 55 inches

What is the maximum possible tree height recorded in the data?

• 95 inches

• 99 inches

• 105 inches

• 100 inches