Using probability to assess risk (Edexcel GCSE Statistics): Flashcards
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How do you convert risk from decimal to percentage?
How do you convert risk from decimal to percentage?
Multiply the decimal risk by 100 to get a percentage.
What does relative risk compare?
What does relative risk compare?
Risk between two groups or conditions.
How to calculate relative risk?
How to calculate relative risk?
Risk in group A / Risk in group B.
Name a real-world application of risk assessment.
Name a real-world application of risk assessment.
Healthcare: comparing treatment side effects.
How to interpret a relative risk of 2.33?
How to interpret a relative risk of 2.33?
Event is 2⅓ times more likely in one group.
What do higher risk values (closer to 1) indicate?
What do higher risk values (closer to 1) indicate?
Higher likelihood of the event happening.
Which has higher risk: 8/46 (feet) or 3/50 (knees)?
Which has higher risk: 8/46 (feet) or 3/50 (knees)?
8/46 higher; ≈0.174 (17.4%), knees 0.06 (6%)
Relative risk old vs new: 35% vs 15%?
Relative risk old vs new: 35% vs 15%?
0.35/0.15 = 2.33 times (old is 2⅓× more likely)
Find risk of foot injury (8 in 46 games)
Find risk of foot injury (8 in 46 games)
8/46 = 0.1739 ≈ 0.17 = 17%
Calculate relative risk: old 35% vs new 15%
Calculate relative risk: old 35% vs new 15%
0.35/0.15 = 2.33; old is 2.33 times more likely