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 displays the median, quartiles, and extremes (minimum and maximum values) of the data.

Front

How do you find the median in a data set?

Back

To find the median, arrange the data in ascending order and locate the middle number. If there are two middle numbers, add them together and divide by two.

Front

What does the interquartile range (IQR) represent?

Back

The interquartile range (IQR) represents the range of the middle 50% of the data, calculated as the difference between the upper quartile (Q3) and lower quartile (Q1).

Front

What do points A and E represent on a box plot?

Back

Points A and E represent the least and greatest values (minimum and maximum) of the data set.

Front

How do you calculate the interquartile range (IQR)?

Back

IQR = Q3 - Q1, where Q3 is the upper quartile and Q1 is the lower quartile.

Front

What is the purpose of a box and whisker plot?

Back

The purpose of a box and whisker plot is to provide a visual summary of the distribution of a data set, highlighting its central tendency and variability.

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 are the lines that extend from the box to the minimum and maximum values, showing the range of the data.

Front

How do you identify outliers in a box plot?

Back

Outliers are typically identified as points that fall outside 1.5 times the IQR above Q3 or below Q1.

Front

What is the median in a data set?

Back

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