Understanding Box Plots
This worksheet helps sixth-grade students understand and interpret box plots, identifying key components like median, quartiles, and range.
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Understanding Box Plots
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Read each question carefully and answer to the best of your ability. Refer to the provided box plots to answer the questions.
A box plot (also known as a box-and-whisker plot) displays the five-number summary of a set of data: the minimum, first quartile (Q1), median (Q2), third quartile (Q3), and maximum. It helps to show the distribution and spread of data.
Use the box plot below to answer questions 1-3.
1. What is the median of the data set shown in the box plot?
2. What is the minimum value of the data set?
3. What is the range of the data set (Maximum - Minimum)?
4. The first quartile (Q1) represents:
The highest value in the data set
The middle value of the lower half of the data
The average of all values
The smallest value in the data set
5. Which part of a box plot shows the middle 50% of the data?
The whiskers
The median line
The box
The maximum value
6. The is the line inside the box that divides the data into two equal halves.
7. The two lines extending from the box are called the .
8. The third quartile (Q3) marks the point below which % of the data falls.
9. A box plot shows individual data points.
True
False
10. The interquartile range (IQR) is the difference between the maximum and minimum values.
True
False