Data GCSE Revision

​Data
Revision

Lesson Objectives

​1) Bar Charts
2) Comparative Bar Charts
3) Composite Bar Charts
4) Pie Charts
5) Averages
6) Venn Diagrams

​Bar Charts

​What should bar charts have?

​Bar Charts

​What should bar charts have?

​1) Title
2) Label
3) Key
4) Even Spaced

Multiple Select

What 2 things are wrong with this bar chart?

• Not in colour

• No labels

• Should have used a line chart

• Spacing incorrect on the chart

Fill in the Blank

How many of these years was car production more than 1.4 million?

Multiple Select

In which two years was car production the same? (choose 2 answers)

• 1

• 4

• 5

• 6

• 8

​Comparative Bar Charts

​Complete Question 3 (revision book)

​Should look something like this.......

​Composite Bar Charts

Labelling

Label this composite bar chart

Drag labels to their correct position on the image

Totals for each group

Data label

Title

Frequency

Key

Fill in the Blank

How many people passed their driving test at the Bristol Centre?

Fill in the Blank

How many people failed their driving test at the Taunton Test Centre?

Fill in the Blank

How many students sat their test at Swindon?

​Pie Charts

​Complete Question 4 (revision book)

​Does yours look like this?

​Hey diddle-diddle the MEDIAN’s the middle You add, then divide for the MEAN The MODE is the one you see the most And the RANGE is the difference between

​AVERAGES

​Mean

​Reminder: add together and divide by how many there are!

​Question: What is the mean to this set of data?

​2, 8, 6, 3, 12, 7, 4

​Question: What about this set of data?

​9, -3, -6, 5, 0​

Multiple Choice

What is the mean for this set of data? 3, 2, 1, 3, 2, 2, 1, 3, 1, 2, 3, 2, 1

• 2.5
• 3
• 1
• 2

Multiple Choice

What is the mean for this set of data? 20, 30, 24, 32​

• 26.5
• 30
• 27
• 25

Fill in the Blank

What is the mean of these 5 numbers?

Mode

​Reminder: the most common 'popular' number

​Question: What is the mode to this set of data?

8, 3, 3, 4, 6, 8, 13, 3, 18

​Question: What is the modal for this set of data?

-2, -1, 5, 8, -2, 2, -1, 9, -1, 1, 2, -1​

Multiple Choice

What is the mode of this set of data? 8, 3, 3, 4, 6, 8, 13, 3, 18

• 4
• 6
• 8
• 3

Multiple Choice

What is the mode for this set of data? 2.3, 2.6, 2.8, 2.7, 2.8, 2.7, 2.4, 2.3, 2.1, 2.3​

• 2.3
• 2.8
• 2.6
• 2.4

Fill in the Blank

What is the modal of these numbers?

Median

​Reminder: the middle number

​Question: What is the median to this set of data?

5, 1, 4, 6, 8

​Question: What is the median for this set of data?

7, 3, 8, 9, 6, 5

Multiple Choice

What is the median for this set of numbers? 9, 1, 3, 6, 7, 8, 9​

• 6
• 7
• 9
• 8

Multiple Choice

What is the median for this set of data? 124, 53, 39, 230, 155, 180​

• 155
• 124
• 139.5
• 180

Fill in the Blank

What is the median of these numbers?

Range

​Reminder: the largest take away the smallest

​Question: What is the range of this set of data?

5, 9, 1, 5, 7, 4, 3

​Question: What is the median for this set of data?

7, 1, 9, -2, 13, 9, 8, 20, -8, 1

Multiple Choice

What is the range of this data? 6, 7, 10, 8, 9, 9

• 4
• 5
• 7
• 3

Multiple Choice

What is the range of this data? 210, 250, 260, 180, 240

• 90
• 100
• 70
• 80

Fill in the Blank

What is the range of these potatoes?

​Venn Diagrams

​Venn Diagrams

​Venn Diagrams

​50 - 6 = 44
30 + 25 = 55
55 - 44 = 11
30 - 11 = 19
25 - 11 = 14

​6

​19

​11

​14

​Venn Diagrams

​20 + 15 = 25
40 - 25 = 15

​5

​10

​10

​15

​Your Turn

​Now work on Revision 1 books
Past Papers
Teams