Year 8

Year 8

Choosing the right graph

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Lesson details

Key learning points

1. In this lesson, we will discuss which graph is the appropriate to display for a hypothesis.

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3 Questions

Q1.
Look at the table below, which shows the favourite lunch option for boys and girls in Year 8. First, how many boys in total were asked?
100
150
25
Q2.
What proportion of boys prefer sandwiches?
12%
18%
39%
Q3.
Which of these statements is INCORRECT?
A higher proportion of girls like soup than boys
Half of girls prefer pizza
Correct answer: More girls than boys like pizza, so girls prefer pizza to boys
Soup is the least popular of the 3 options

3 Questions

Q1.
What variable(s) had to be collected for the chart below?
Height
Shoe Size
Correct answer: Shoe Size and Height
Shoe Size and Name
Q2.
What variable(s) had to be collected for the chart below?
Height
Year 7, Year 8 or Year 9
Year Group
Correct answer: Year Group and Height
Q3.
Andy asks different students in Year 7 and Year 8 their height and weight. For which hypothesis would a scatter graph be most appropriate for?
Students in Year 8 are taller than students in Year 7
Correct answer: Students who are taller also weigh more
The range of weights is greater in Year 8 than Year 7