CIE A Level Maths: Probability & Statistics 1复习笔记2.3.3 Further Venn Diagrams
Further Venn Diagrams
What do you mean by further Venn diagrams?
- The Venn diagrams used here are no more complicated than those in the first Venn Diagrams revision note, however
- questions may use set notation as well, or alongside contextual questions
- there may be more detailed use of conditional probability
- mutually exclusive, three events and other unusual Venn diagram setups may be involved
How do I solve conditional probability problems using Venn diagrams?
Worked Example
Exam Tip
- Although very versatile, Venn diagrams may not always be the best option
- use a tree diagram if one event follows another
e.g. two beads drawn from a bag without replacement
-
- use a two-way table for showing how many items/people are in associated categories
e.g. A school year group split by gender selecting which sport they wish to play
- use a two-way table for showing how many items/people are in associated categories
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