# Interquartile range, cumulative frequency, box and whisker plots

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• Created by: Elca
• Created on: 03-06-15 19:29
Discrete data
The units of measurement (for example, CDs) cannot be split up; there is nothing between 1 CD and 2 CDs
1 of 7
Continuous data
The scale of measurement - distance - has meaning at all points between the numbers given, eg we can travel a distance of 1.2 and 1.85 and even 1.632 miles
2 of 7
Classes
The groups the data is organised into
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Class boundaries
Boundaries between one class and the next
4 of 7
Class width
The difference between the upper class boundary and lower class boundary
5 of 7
Midpoint
The middle of the upper and lower class boundaries (i.e, the median)
6 of 7
Box and whisker plot
Used to display information about the range, the median and the quartiles
7 of 7

## Other cards in this set

### Card 2

#### Front

The scale of measurement - distance - has meaning at all points between the numbers given, eg we can travel a distance of 1.2 and 1.85 and even 1.632 miles

Continuous data

### Card 3

#### Front

The groups the data is organised into

### Card 4

#### Front

Boundaries between one class and the next

### Card 5

#### Front

The difference between the upper class boundary and lower class boundary