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, median, third quartile, and maximum.

Front

What does the median represent in a data set?

Back

The median is the middle value of a data set when it is ordered from least to greatest.

Front

How do you find the median of a data set?

Back

To find the median, arrange the numbers in order and identify the middle number. If there is an even number of values, average the two middle numbers.

Front

What is the purpose of the whiskers in a Box and Whisker Plot?

Back

The whiskers extend from the box to the smallest and largest values in the data set, showing the range of the data.

Front

What is the interquartile range (IQR)?

Back

The interquartile range (IQR) is the difference between the first quartile (Q1) and the third quartile (Q3) and represents the middle 50% of the data.

Front

What does a higher median indicate about a data set?

Back

A higher median indicates that the central tendency of the data set is higher, meaning that more values are above the lower half of the data.

Front

How can you determine the range of a data set?

Back

The range is determined by subtracting the smallest value from the largest value in the data set.

Front

What does it mean if a Box and Whisker Plot is skewed to the right?

Back

If a Box and Whisker Plot is skewed to the right, it means that there are a few high values that are pulling the median and the upper quartile higher.

Front

What is the first quartile (Q1)?

Back

The first quartile (Q1) is the median of the lower half of the data set, 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 data set, representing the 75th percentile.