Box-and-Whisker Plots

Algebra 1

6.7

p. 375

Box-and-Whisker Plots

A data display that divides a set into four parts.

Box-and-Whisker Plots

A data display that divides a set into four parts.

These for parts are called quartiles.

Making a Box-and-Whisker Plot

1. Find the median of the data.

Making a Box-and-Whisker Plot

1. Find the median of the data.• This is the second quartile.

Making a Box-and-Whisker Plot

1. Find the median of the data.

2. Find the first and third quartiles.

Making a Box-and-Whisker Plot

1. Find the median of the data.

2. Find the first and third quartiles.• These are the medians of the first half and

the second half.

Making a Box-and-Whisker Plot

1. Find the median of the data.

2. Find the first and third quartiles.

3. Draw a number line that includes the least number and the greatest number in the set.

Making a Box-and-Whisker Plot

1. Find the median of the data.

2. Find the first and third quartiles.

3. Draw a number line that includes the least number and the greatest number in the set.

4. Plot.

Making a Box-and-Whisker Plot

5. Draw a box below the number line from the first quartile to the third.• Draw a vertical line to represent the

second quartile.

Making a Box-and-Whisker Plot

5. Draw a box below the number line from the first quartile to the third.

Making a Box-and-Whisker Plot

5. Draw a box below the number line from the first quartile to the third.

6. Draw whiskers connecting the box to the least and greatest numbers.