ALG Box and Whisker Plots

Front

What is a Box Plot?

Back

A Box Plot, also known as a 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 median represent in a dataset?

Back

The median is the middle value of a dataset when it is ordered from least to greatest. It divides the dataset into two equal halves.

Front

What are quartiles in statistics?

Back

Quartiles are values that divide a dataset into four equal parts. The first quartile (Q1) is the median of the lower half, the second quartile (Q2) is the median, and the third quartile (Q3) is the median of the upper half.

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 point C represent in a Box Plot?

Back

Point C represents the median of the dataset.

Front

What is the lower quartile (Q1)?

Back

The lower quartile (Q1) is the value below which 25% of the data falls.

Front

What is the upper quartile (Q3)?

Back

The upper quartile (Q3) is the value below which 75% of the data falls.

Front

What does the whisker in a Box Plot indicate?

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 IQR?

Back

The Interquartile Range (IQR) contains the middle 50% of the data.

Front

How do you find the median of a dataset?

Back

To find the median, order the data from least to greatest and identify the middle value. If there is an even number of values, average the two middle values.