Double Box Plots

Front

What is a double box plot?

Back

A double box plot is a graphical representation that displays the distribution of two sets of data side by side, allowing for easy comparison of their medians, quartiles, and ranges.

Front

What does the median represent in a box plot?

Back

The median is the middle value of a data set when it is ordered from least to greatest. In a box plot, it is represented by the line inside the box.

Front

What are quartiles in a box plot?

Back

Quartiles are values that divide a data set into four equal parts. The first quartile (Q1) is the median of the lower half, the second quartile (Q2) is the median, and the third quartile (Q3) is the median of the upper half.

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 whisker in a box plot represent?

Back

The whiskers in a box plot extend from the quartiles to the smallest and largest values within 1.5 times the IQR, showing the range of the data.

Front

How can you determine which data set has a higher median using box plots?

Back

You can determine which data set has a higher median by comparing the lines inside the boxes of the box plots; the higher line indicates the higher median.

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 is the significance of the outliers in a box plot?

Back

Outliers are data points that fall outside the whiskers of a box plot. They indicate values that are significantly higher or lower than the rest of the data.

Front

How do you interpret the range of a data set from a box plot?

Back

The range of a data set can be interpreted by looking at the distance between the smallest and largest values represented by the ends of the whiskers.

Front

What does it mean if two box plots overlap?

Back

If two box plots overlap, it suggests that the two data sets share some common values, but it does not necessarily mean they are the same.