Box Plots

Front

What is a box plot?

Back

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

Front

What does the minimum value represent in a box plot?

Back

The minimum value is the smallest data point in the dataset, represented by the leftmost point on the box plot.

Front

What is the maximum value in a box plot?

Back

The maximum value is the largest data point in the dataset, represented by the rightmost point on the box plot.

Front

How do you find the median in a box plot?

Back

The median is the middle value of the dataset when it is ordered from least to greatest, represented by the line inside the box.

Front

What are quartiles in a box plot?

Back

Quartiles are values that divide the dataset into four equal parts: Q1 (25th percentile), median (50th percentile), and Q3 (75th percentile).

Front

How is the interquartile range (IQR) calculated?

Back

The interquartile range (IQR) is calculated 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 minimum and maximum values, showing the range of the data.

Front

What is the significance of the median in a box plot?

Back

The median indicates the central tendency of the dataset, providing a measure of the middle value.

Front

How can you identify outliers in a box plot?

Back

Outliers can be identified as points that fall outside the whiskers, typically defined as 1.5 times the IQR above Q3 or below Q1.

Front

What does a wider box in a box plot indicate?

Back

A wider box indicates a larger interquartile range (IQR), suggesting greater variability in the middle 50% of the data.