Quartiles Worksheet
A worksheet for 8th-grade students covering quartiles, interquartile range, and data distribution.
Includes
Standards
Topics
Quartiles & Data Distribution
Name:
Date:
Score:
Read each question carefully and provide your answers in the spaces provided. Show all your work where applicable.
1. Quartiles divide a data set into equal parts.
2. The quartile is also known as the median.
3. The interquartile range (IQR) is the difference between the quartile and the quartile.
4. For the following data set: 12, 15, 18, 20, 22, 25, 28, 30, 32, find the first quartile (Q1), the second quartile (Q2), and the third quartile (Q3).
5. Given the data set: 5, 8, 10, 12, 15, 18, 20, 22, 25, 28, calculate the Interquartile Range (IQR).
6. Which of the following is NOT a quartile?
Q1
Q2
Q3
Q4
7. What does a large Interquartile Range (IQR) indicate about a data set?
The data is closely clustered.
The data is widely spread out.
The data has no outliers.
The mean and median are the same.
8. The median is always the same as the second quartile (Q2).
True
False
9. Outliers are data points that fall within the Interquartile Range.
True
False
10. The following numbers represent the scores of students on a math test: 65, 70, 72, 75, 78, 80, 82, 85, 88, 90, 92, 95. Construct a number line and mark Q1, Q2, and Q3 on it.
Related Worksheets
Grade 8 Data Visualization Worksheet
A worksheet for 8th-grade students covering various data visualization techniques including bar graphs, line plots, and pie charts.
Grade 8 Frequency Tables Worksheet
This worksheet helps 8th-grade students practice creating and interpreting frequency tables from given data sets.
Counting Principle Worksheet
This worksheet focuses on the fundamental counting principle with real-world scenarios for Grade 8 students.
Grade 8 Mean Absolute Deviation Worksheet
This worksheet helps 8th-grade students understand and calculate the Mean Absolute Deviation (MAD) of data sets, a measure of variability.
Grade 8 Math: Center and Spread
A worksheet for 8th-grade students covering measures of center (mean, median, mode) and spread (range, interquartile range) with real-world data sets.
Grade 8 Tree Diagrams Worksheet
This worksheet helps 8th-grade students understand and construct tree diagrams to visualize and calculate probabilities of sequential events.
Finding Average (Mean)
This worksheet helps 8th-grade students practice calculating the mean (average) of various data sets, including word problems and data from bar graphs.
Experimental Probability Worksheet
A Grade 8 math worksheet focusing on experimental probability with various question types to reinforce understanding.