Frequency Distribution and Graphs

What is another name for the ogive?

• Histogram

• Frequency Polygon

• Cumulative Frequency Graph

• Pareto Chart

What are the true class boundaries for the class interval 8 - 9?

• 8.5 - 9.5

• 7.5 - 9.5

• 8.55 - 9.55

• 8 - 9

In the construction of a frequency distribution, it is a good idea to have overlapping class limits, such as 10-20, 20-30, 30-40.

• True

• False

Use the given frequency distribution to find the

(a) class width

(b) midpoints of the first class

(c) boundaries of the first class

• (a) 3

  (b) 51

  (c) 50 - 52

• (a) 2

  (b) 51.5

  (c) 50 - 52

• (a) 3

  (b) 51

  (c) 49.5 - 52.5

• (a) 2

  (b) 51.5

  (c) 49.5 - 52.5

Identify the class with the highest relative frequency.

• 95 - 105

• 105 - 115

• 115 - 125

• 125 - 135

A city in the Pacific Northwest recorded its highest temperature at 91 degrees Fahrenheit and its lowest temperature at 12 degrees Fahrenheit for a particular year. Use this information to find the upper and lower limits of the first class if you wish to construct a frequency distribution with 10 classes

• 7 - 17

• 12 - 19

• 12 - 20

• 12 - 18

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

What would be the cumulative frequency for the third class?

• 5

• 12

• 17

• 18

What is the difference between the shortest and the longest distance of the baseball thrown?

• 10.05 feet
• 8.5 feet
• 8.2 feet
• 8.0 feet