Connect the ideas
Probabilities run from 0 for impossible to 1 for certain.
For equally likely outcomes, divide favourable outcomes by all outcomes.
Fractions, decimals and percentages can represent the same probability.
Expected count equals trial count multiplied by probability.
Observed frequencies can differ from expectations; retain honest records.
Larger experiments tend to stabilise relative frequencies, without guaranteeing an exact result.
Topic test
Complete each paper and show your working.
Probability topic test
12 questions · 24 marks · 35 minutes · By hand