🔢 Mathematics · Probability
Complementary events
Understand and apply the rule that probabilities of all mutually exclusive outcomes sum to one; use this to find the probability of a complementary event (P(not A) = 1 − P(A))
Typical age: 11–13 years
“If a spinner has three sections and one has a probability of 0.4 and another has 0.35, can your child work out the probability of landing on the third section without being told?”
0 / 3 mastered