# Maths unit A:Quartiles

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• Created by: rvsn
• Created on: 18-11-14 21:23
Before doing anything what must the data be?
In order of lowest to highest
1 of 8
What must you first do in the data?
Find the median piece of data
2 of 8
What is the lower quartile?
All the numbers below the median
3 of 8
What is the upper quartile?
All the numbers above the median
4 of 8
How do you find the interquartile range(IQR)?
1.Find the median of the lower quartile 2.Find the median of the upper quartile 3.Take away the lower quartile median from the upper quartile median
5 of 8
What are the labels for each quartile?
Q =median of lower quartile Q =median of all data Q =median of upper quartile
6 of 8
Where is the lower quartile median?
The piece of data a 1/4 of the way along the data set
7 of 8
Where is the upper quartile median?
The piece of data 3/4 of the way along the data set
8 of 8

## Other cards in this set

### Card 2

#### Front

What must you first do in the data?

#### Back

Find the median piece of data

### Card 3

#### Front

What is the lower quartile?

### Card 4

#### Front

What is the upper quartile?

### Card 5

#### Front

How do you find the interquartile range(IQR)?

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