Box plots

Front

What is a box plot?

Back

A box plot is a graphical representation of a dataset that displays the distribution through five summary statistics: minimum, first quartile (Q1), median (Q2), third quartile (Q3), and maximum.

Front

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

Back

The lower quartile (Q1) represents the median of the lower half of the dataset, indicating that 25% of the data points fall below this value.

Front

What does the median (Q2) indicate in a box plot?

Back

The median (Q2) is the middle value of the dataset when it is ordered, dividing the dataset into two equal halves.

Front

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

Back

The upper quartile (Q3) represents the median of the upper half of the dataset, indicating that 75% of the data points fall below this value.

Front

What are the five number summary components in a box plot?

Back

The five number summary consists of the minimum, first quartile (Q1), median (Q2), third quartile (Q3), and maximum.

Front

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

Back

Points A and E represent the least (minimum) and greatest (maximum) values of the dataset, respectively.

Front

How do you calculate the interquartile range (IQR)?

Back

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

Front

What does a box plot visually represent about a dataset?

Back

A box plot visually represents the central tendency, variability, and skewness of a dataset, as well as potential outliers.

Front

What is the significance of outliers in a box plot?

Back

Outliers are data points that fall significantly outside the range of the box plot, indicating values that are unusually high or low compared to the rest of the data.

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, dividing the box into two parts.