Unit 5 · Weakening Arguments

Olivia's Car and Crashes — Weaken the Claim

Lesson 8 of 9

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About this lesson

Natalie warns Olivia that more crashes happen between 4 pm and 7 pm, so she's more likely to be hurt then. But is a higher total number of crashes the same as a higher risk for each driver?

Chapters

0:00Introduction
0:23Question
1:10Strategy
1:43Step 1: Pin down Natalie's argument
2:14Step 2: Total vs rate — plain language
2:53Step 3: Test each option
3:41Correct answer

Question

When Olivia got a car, her cousin Natalie said to her: “More people are injured in car crashes between 4 pm and 7 pm than at other times.

This means you should be more careful driving then, as you are more likely to be hurt in a crash.”

Which one of these statements, if true, most weakens Natalie's argument?

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