Box and Whisker Plots

Front

What is a Box and Whisker Plot?

Back

A Box and Whisker Plot is a graphical representation of a dataset that displays its minimum, first quartile, median, third quartile, and maximum.

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 do the whiskers in a Box and Whisker Plot indicate?

Back

The whiskers extend from the box to the smallest and largest values that are not outliers.

Front

How do you find the median in a Box and Whisker Plot?

Back

The median is the line inside the box, dividing the dataset into two equal halves.

Front

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

Back

Outliers are values that fall significantly outside the range of the rest of the data, and identifying them helps in understanding the distribution.

Front

How do you calculate the interquartile range (IQR)?

Back

IQR is calculated by subtracting the first quartile (Q1) from the third quartile (Q3): IQR = Q3 - Q1.

Front

What does a longer whisker indicate in a Box and Whisker Plot?

Back

A longer whisker indicates a greater spread in the data, showing more variability.

Front

What is the first quartile (Q1)?

Back

Q1 is the median of the lower half of the dataset, representing the 25th percentile.

Front

What is the third quartile (Q3)?

Back

Q3 is the median of the upper half of the dataset, representing the 75th percentile.

Front

How can you determine if a dataset is skewed using a Box and Whisker Plot?

Back

If the median line is closer to the bottom or top of the box, or if one whisker is significantly longer than the other, the dataset may be skewed.