9-3 3E The boxplot

• Wiskunde
• Middelbare school
• havo
• Leerjaar 3

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9.3 The boxplot

Today

• Lesson objectives and prior knowledge
• explanation
• questions
• work for yourself
• lesson objective check and homework assignments

lesson objectives

You can work with the data in a boxplot.

You can draw your own boxplot.

The median of the first half of the set of data is called...
abreviation, full term

The five-number summary consists of...
abbreviation (explanation/full term)

How do you calculate the range and the interquartile range?
range = only abbreviations
interquartile range = only abbreviations

The boxplot

Drawing a boxplot

1. Calculate the five-number summary
2. Use Q0 and Q4 to draaw the horizontal axis.
3. Draw the box (Q₁ en Q₃), mark the median (Q₂).
4. Draw the antennas of the box (Q₀ en Q₄).
5. Remember to define the horizontal axis and add a title.

work for yourselves

Do the exercises in 9.3

Choose your route.

p. 157-161

End of the lesson

Finish up the exercises 

(also your task)