Unit 6 · Identifying Sufficient Information

Simon Dismisses 1/3 Stat — What's His Mistake?

Lesson 8 of 12

Premium

About this lesson

A news report says nearly a third of Australians go swimming regularly. Simon says: "That can't be true — I almost never swim, and neither do any of my friends." Which sentence shows that Simon has made a mistake? This is a classic hasty generalisation: Simon is using his own small, possibly unusual group to reject a national statistic.

Chapters

0:00Introduction
0:24The Question
1:10Step 1: Identify Simon's reasoning error
1:40Step 2: Why might his sample be unrepresentative?
2:03Step 3: Test each option
2:39Correct answer

Question

Simon is watching a news report which claims that nearly a third of Australians go swimming regularly.

Simon: "That can't be true – I almost never go swimming, and neither do any of my friends."

Which one of the following sentences shows that Simon has made a mistake?

Free account · OC

Take your OC prep further

  • Sample questions & worked solutions across core OC topics
  • Digital exam simulator with interactive practice sets
  • Personalised progress tracking across all your devices
Create free account

Already have an account? Log in here

No payment required. Compare OC plans

0 of 12 lessons completed

0%

Give Your Child the Best Chance at OC Entry

Join NSW families preparing their children for the Opportunity Class Placement Test with the most realistic online OC practice tests available. First tests free—no credit card required.

Claim Your Free OC Practice Tests