Understanding Histograms
A Grade 7 math worksheet focusing on interpreting and creating histograms, covering frequency, intervals, and data representation.
Includes
Standards
Understanding Histograms
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Read each question carefully and answer to the best of your ability. Show your work where applicable. This worksheet will test your knowledge of histograms.
1. What type of data is best represented by a histogram?
Categorical data
Continuous numerical data
Ordinal data
Nominal data
2. What is the main difference between a bar graph and a histogram?
Bar graphs have gaps between bars, histograms do not.
Histograms show categories, bar graphs show intervals.
Bar graphs are only for qualitative data.
Histograms always have a title.
1. In a histogram, the horizontal axis represents the of data.
2. The vertical axis of a histogram shows the , or how often data falls into an interval.
3. The bars in a histogram must each other, indicating continuous data.
Use the histogram below to answer the following questions.
1. How many students scored between 70 and 79?
2. Which score interval had the most students?
3. How many students took the test in total?
The following data represents the heights (in cm) of students in a class: 145, 150, 152, 148, 155, 160, 153, 147, 158, 162, 150, 151, 156, 149, 154.
Create a frequency table with intervals of 5 cm (e.g., 145-149, 150-154, etc.) and then sketch a histogram for this data in the space below.
1. The bars in a histogram can vary in width.
True
False
2. Histograms are useful for showing the distribution of data.
True
False