Distribution Graphs

What is another name for the ogive?

• Histogram

• Frequency Polygon

• Cumulative Frequency Graph

• Pareto Chart

Identify the class with the highest relative frequency.

• 95 - 105

• 105 - 115

• 115 - 125

• 125 - 135

Use the frequency histogram to determine the class width

• 7

• 8

• 9

• 10

Use the ogive to approximate the cumulative frequency for a height of 72 inches.

• 36

• 43

• 48

• 51

These are used as the border between two consecutive bars in a histogram. They are the intermediate value between an upper class limit and the next lower class limit.

• class limits

• class boundaries

• frequencies

• class marks

Find the midpoints.

• 25.5, 35.5, 45.5, 55.5, 65.5, 75.5

• 20.5, 30.5, 40.5, 50.5, 60.5, 70.5, 80.5

• 21, 31, 41, 51, 61, 71

• 30, 40, 50, 60, 70, 80

Find the relative frequencies

• 37%, 76%, 92%, 95%, 98%, 100%

• 28%, 30%, 12%, 2%, 2%, 2%

• 33%, 37%, 20%, 7%, 7%, 7%

• 37%, 39%, 16%, 3%, 3%, 3%

A type of bar graph used to display numerical data that has been organized into equal intervals.

• Line Plot

• Interval

• Frequency Table

• Histogram

Find the cumulative frequencies.

• 28, 56, 84, 100

• 28, 58, 70, 72, 74, 76

• 33%, 37%, 20%, 7%, 7%, 7%

• 28, 30, 12, 2, 2, 2

Complete the definition:

• class boundaries

• lower class limits

• upper lass limits

• midpoints