Episode 11 — Probability

Identities

Learners will be able to:

• Identify the probability scale and its range from 0 (impossible) to 1 (certain). • Explain that a probability of 0 means an event will never happen, and a probability of 1 means it will always happen. • Describe how to measure a probability with a percentage. • Calculate the number of outcomes in a sample space using n(S). • Identify the complement of an event as all other possible outcomes. • Explain that mutually exclusive events cannot occur at the same time. • Define independent and dependent events, providing examples. • Use the formula P(A or B) = P(A) + P(B) - P(A and B) to calculate probabilities for mutually exclusive events. • Apply the complementary rule to find the probability of not getting an event. • Determine whether two events are independent using the product rule. • Calculate the probability of getting A or B when events A and B are mutually exclusive.