Lesson details

Key learning points

  1. In this lesson, we will discuss the benefits are potential problems of truncating axes.

Licence

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4 Questions

Q1.
Smoking causes lung cancer. What kind of correlation would you expect to see?
A negative correlation.
Correct answer: A positive correlation.
No correlation.
Q2.
There is a positive correlation between the number of pets people own, and the number of books people read. Which of these statements is most likely to be true?
Higher pet ownership causes more reading
More reading causes higher pet ownership
Correct answer: There is no causal relationship between higher pet ownership and reading
Q3.
What correlation would you expect to see between the variables weekly salary and amount spent on food per week?
Negative correlation
No correlation
Correct answer: Positive correlation
Q4.
Which of the following statements is most likely to be true?
A higher amount of money spent on food causes a higher salary
A higher amount of money spent on food causes a lower salary
Correct answer: A higher salary causes a higher amount of money spent on food
A higher salary causes a lower amount of money spent on food

3 Questions

Q1.
The graph below shows the favourite sport of some pupils in Year 8, how many prefer boxing?
10
4
6
Correct answer: 8
Q2.
Looking at the same graph, is the following statement true or false: "Triple the number of people prefer boxing to athletics"
Correct answer: False
Impossible to say
True
Q3.
Which statement is true? Select one.
Correct answer: 25% more people prefer other sports to athletics
4 more people prefer cricket to boxing
Double the number of people prefer athletics to tennis
Triple the number of people prefer other sports to tennis

Lesson appears in

UnitMaths / Bivariate data