Using probability to assess risk (Edexcel GCSE Statistics): Quizzes
📚Quizzes
Practise the questions
10 questions from this quiz
ShowHide
Practise the questions
10 questions from this quiz
What is the basic formula for calculating risk of an event?
What is the basic formula for calculating risk of an event?
Number of successes over total trials
If 6 finger injuries occur in 50 basketball games, what's the injury risk?
If 6 finger injuries occur in 50 basketball games, what's the injury risk?
0.12
What does a risk value close to 1 indicate?
What does a risk value close to 1 indicate?
High likelihood of event
How do you convert a risk of 0.12 to a percentage?
How do you convert a risk of 0.12 to a percentage?
Multiply by 100
What is the formula for relative risk?
What is the formula for relative risk?
Risk in group divided by risk in others
A new treatment has a 15% failure rate, and the old has 35%. What's the relative risk?
A new treatment has a 15% failure rate, and the old has 35%. What's the relative risk?
2.33
Why is experimental probability used in risk assessment?
Why is experimental probability used in risk assessment?
It uses real data
What is the key step before comparing risks between groups?
What is the key step before comparing risks between groups?
Calculate absolute risks
What is the main purpose of risk assessment?
What is the main purpose of risk assessment?
To understand event likelihoods
In the basketball injury example, what injury type had the highest risk?
In the basketball injury example, what injury type had the highest risk?
Feet