Bell RingerFind the median of the following set of

numbers.

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Section 13.4Box and Whisker Plots

R drive > Key > April 20_24 > 4_22__13.4 Box and Whisker Plot

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VocabularyBox – and – Whisker Plot- Uses a number

line to show the distribution of a set of data

NotesA box – and – whisker plot divides a set of

data into four parts using the median and quartiles.

A box is drawn around the quartile values Whiskers extend from each quartile to the

minimum and maximum values that are not outliers.

Example 1Draw a Box – and – Whisker Plot

Example 2Draw a Box – and – Whisker Plot

Example 3Draw a Box – and – Whisker Plot

The projected number of employees in 2010 in some of the fastest – growing occupations is

shown below. Use the data in the table to draw a box – and – whisker plot for the fastest

– growing jobs.

NotesEvery part of the box – and – whisker plot is

25%.It uses 5 numbers to separate the data into

four parts:The Minimum ValueThe Lower QuartileThe MedianThe Upper QuartileThe Maximum Value

NotesA long whisker or box indicates that the data

have a greater range. The values of the data are spread out.

A short whisker or box indicates the data have a lesser range.The values of the data in that part are

concentrated.

Example 4Interpret Data

The number of chart hits for the top female groups in the U.S. are displayed.

(a) What percent of the groups had at least 18 chart hits?

(b) What does the length of the box tell about the data? Length of the whisker?

Example 5Interpret Data

The number of Calories in one serving of various muffins are displayed in the box – and – whisker

plot below.

(A) What percent of the muffins have more than 275 Calories per muffin?

(B) What does the length of the box tell about the data? Length of the whiskers?

Example 6Compare Data

Example 7Compare Data

HomeworkSection 13.4 # 1-7

HomeworkSection 13.4 #1-7

HomeworkSection 13.4 #1-7