AC9M8P01 • Year 8 Maths
That complementary events have a combined probability of one; use (AC9M8P01)
recognise situations, including financial contexts, that use integers; locate and represent integers on a number line and as coordinates on the Cartesian plane
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60-second Quick Read
- recognise that complementary events have a combined probability of one; use this relationship to calculate probabilities in applied contexts
- Example: understanding that knowing the probability of an event allows the probability of its complement to be found, including for those events that are not equally likely, such as…
- Common trap: using the relationship that for a single event A, Pr(A)+Pr(\;not\;A)\;=\;1; for example, if the probability that it rains on a particular day is 80\%, the probability that it…