AQA All About Maths
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Topic: Collecting Data (Higher - Unit 1)
Specification References: S3.1
S3.1
Design and use two-way tables for grouped and ungrouped data.
Candidates should be able to:
design and use two-way tables
complete a two-way table from given information
Examples
The table shows the gender of pupils in each year group in a school.
Gender / Y
7
8
9
10
11
Male
82
89
101
95
92
Female
75
87
87
99
101
Which year group had the most pupils?
What percentage of Year 9 are boys?
A student from the school is chosen at random to welcome a visitor.
What is the probability that this student is a Year 7 girl?
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5% of a flock of sheep are black sheep.
¼ of the black sheep and ½ of the white sheep have been sheared.
Complete the two way table.
Coloured / Sheared
Sheared sheep
Unsheared sheep
Black sheep
4
White sheep
The table shows the number of shoppers the weekend before a sale and the weekend of the sale.
Number of shoppers / Day
Saturday
Sunday
Weekend before sale
675
389
Weekend of sale
741
419
Does the data provide evidence to support a claim of a 10% increase in shoppers during the sale?