box plot

Front

What is a box plot?

Back

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

Front

What does the lower quartile (Q1) represent in a box plot?

Back

The lower quartile (Q1) is the value that separates the lowest 25% of the data from the rest.

Front

What is the median in a box plot?

Back

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

Front

What is the upper quartile (Q3) in a box plot?

Back

The upper quartile (Q3) is the value that separates the highest 25% of the data from the rest.

Front

What is the interquartile range (IQR)?

Back

The interquartile range (IQR) is the difference between the upper quartile (Q3) and the lower quartile (Q1). It measures the spread of the middle 50% of the data.

Front

How do you calculate the IQR if Q1 is 60 and Q3 is 80?

Back

IQR = Q3 - Q1 = 80 - 60 = 20.

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 percentage of data lies within the interquartile range (IQR)?

Back

50% of the data lies within the interquartile range (IQR).

Front

How can you identify the median from a box plot?

Back

The median is represented by the line inside the box of the box plot.

Front

What does a longer whisker indicate in a box plot?

Back

A longer whisker indicates a greater range of data outside the quartiles, suggesting more variability.