7.10. Frequency Polygons http://www.ck12.org
follows:
6 + 10 + 22 = 38
This means that 38 players had a height of less than 76.5 inches, so the percentage of the basketball players measured
who had a height of less than 76.5 inches is 10038 = 0. 38 =38%.
Practice
- What name is given to the graph that uses lines to join the midpoints of the classes?
a. bar graph
b. stem-and-leaf
c. histogram
d. frequency polygon - What is the midpoint of the bin [14.5-23.5)?
a. 19
b. 4.5
c. 18.5
d. 38 - The following frequency polygon represents the weights of players who all participated in the same sport. Use
the polygon to answer the following questions:
a. How many players played the sport?
b. What was the most common weight for the players?
c. What sport do you think the players may have been playing?
d. What do the weights of 55 kg and 105 kg represent?
e. What 2 weights have no recorded players weighing those amounts?