This lesson is from Nrich The dog ate my homework
This problem models the interpretation of statistics for testing for eg. cancer, HIV, pregnancy, DNA at a crime scene, and many other similar situations involving false positives.
Rather than focusing on these potentially difficult topics, however, NRich have chosen a ‘jokey’ theme so that students can get into the maths, then appreciate the real world applications through discussion of what the results mean.
|To become more familiar with tree diagrams and interpret them.
Tree diagram and two-way table worksheet