Exhibit 2-7.Thirty students at Eastside High School took the SAT on the same Saturday.Their raw scores are given next. Refer to Exhibit 2-7.Consider a frequency distribution of the data that groups the data in classes of 1400 up to 1600,1600 up to 1800,1800 up to 2000,and so on.What graphical tool would you use to display the cumulative relative frequency of the grouped data?
A)Ogive
B)Polygon
C)Pie Chart
D)Bar Chart

Question

Exhibit 2-7.Thirty students at Eastside High School took the SAT on the same Saturday.Their raw scores are given next.  Refer to Exhibit 2-7.Consider a frequency distribution of the data that groups the data in classes of 1400 up to 1600,1600 up to 1800,1800 up to 2000,and so on.What graphical tool would you use to display the cumulative relative frequency of the grouped data?
A)Ogive 
B)Polygon 
C)Pie Chart 
D)Bar Chart

Quizplus · Accepted Answer

An ogive, also known as a cumulative frequency graph, is the best graphical tool to display the cumulative relative frequency of grouped data. It shows the cumulative frequency of each class or interval in a frequency distribution. The graph starts at the lower limit of the first class and adds each class's frequency as it moves from left to right. The final point on the graph represents the total frequency of the data. This makes it easier to see how many scores fall above or below a certain point on the scale.