Analyzing Box and Whisker Plots

Front

What is a box-and-whisker plot?

Back

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

Front

What does the box in a box-and-whisker plot represent?

Back

The box represents the interquartile range (IQR), which contains the middle 50% of the data.

Front

What are whiskers in a box-and-whisker plot?

Back

Whiskers extend from the box to the minimum and maximum values of the data set, showing the range of the data.

Front

How do you find the range of a data set?

Back

The range is found by subtracting the minimum value from the maximum value.

Front

What is the interquartile range (IQR)?

Back

The IQR is the difference between the upper quartile (Q3) and the lower quartile (Q1), representing the middle 50% of the data.

Front

What does Q1 represent in a box-and-whisker plot?

Back

Q1, or the first quartile, represents the value below which 25% of the data falls.

Front

What does Q3 represent in a box-and-whisker plot?

Back

Q3, or the third quartile, represents the value below which 75% of the data falls.

Front

How can you determine which box-and-whisker plot has more spread out data?

Back

You can determine this by comparing the lengths of the boxes and whiskers; a longer box or whiskers indicate more spread.

Front

What is the median in a box-and-whisker plot?

Back

The median is the middle value of the data set, represented by a line inside the box.

Front

If a box-and-whisker plot shows a longer whisker on one side, what does it indicate?

Back

A longer whisker indicates that there is more variability or spread in the data on that side.