Episode 8 — Probability

Probability

Learners will be able to:

• Calculate the probability that two people have different birthdays in a group of 23 people. • Explain how the complementary rule is used to find the probability of an event not happening. • Identify the number of people required for there to be a 50% chance of two people sharing the same birthday. • Solve the equation using factorials and fractions to determine the probability that birthdays are different in a group of 23 people. • Interpret the result of the calculation to understand when the probability of two people having matching birthdays exceeds 50%.