Histogram

Definition of Histogram

• A histogram is a bar graph that shows how frequently data occur within certain ranges or intervals. The height of each bar gives the frequency in the respective interval.

• The histogram shown below gives the number of children visited a particular zoo.
  

Solved Example on Histogram

• The discounts offered by a super market are as shown in the table. Which of these histograms is the correct representation of the data? 

Choices:

A. Figure 1

B. Figure 2

C. Figure 3

D. Figure 4

Correct Answer: A

Solution:

Step 1: The heights of the bars in the histogram indicates the discount offered (in %) for the corresponding amount (in $).

Step 2: Observe the graphs to match the heights of the bars in each graph with the values in the table.

Step 3: It can be observed that the heights of the bars in Figure 1 matches with the values in the table.

Step 4: So, Figure1 is the correct representation of the data.

Related Terms for Histogram

• Bar graph
• Frequency
• Interval
• Data

                                           

Additional Links for Histogram

• Click here for samples
• Back to Mathematics Dictionary