PSSA Box Plots

Front

What is a box plot?

Back

A box plot is a graphical representation of a dataset that shows its minimum, first quartile (Q1), median, third quartile (Q3), and maximum values.

Front

What does the median represent in a dataset?

Back

The median is the middle value of a dataset when it is ordered from least to greatest. It divides the dataset into two equal halves.

Front

How do you find the interquartile range (IQR)?

Back

The interquartile range (IQR) is found by subtracting the first quartile (Q1) from the third quartile (Q3). IQR = Q3 - Q1.

Front

What does the minimum value in a box plot indicate?

Back

The minimum value in a box plot indicates the smallest data point in the dataset.

Front

What does the maximum value in a box plot indicate?

Back

The maximum value in a box plot indicates the largest data point in the dataset.

Front

What is the first quartile (Q1)?

Back

The first quartile (Q1) is the median of the lower half of the dataset, representing the 25th percentile.

Front

What is the third quartile (Q3)?

Back

The third quartile (Q3) is the median of the upper half of the dataset, representing the 75th percentile.

Front

How can you determine the number of data points above a certain value using a box plot?

Back

You can determine the number of data points above a certain value by counting the data points that fall above the upper whisker of the box plot.

Front

What does a longer box in a box plot indicate?

Back

A longer box in a box plot indicates a greater interquartile range (IQR), meaning there is more variability in the middle 50% of the data.

Front

What does a box plot tell you about the distribution of data?

Back

A box plot provides information about the central tendency, variability, and skewness of the data distribution.