![]() ![]() ![]() There are two groups of children in a classroom: an Asian group with 3 girls and 4 boys an African group with 2 girls and six boys. Therefore, events L and M are not independent. If P(L n M) = 0.35, find the following:ģ) Are L and M independent? Explain your answer.ģ) P(L / M) is not the same P(L) P(M / L) is not the same as P(M) either. The probabilities of event L and event M are 0.4 and 0.7 respectively. Now follow the worked examples on Venn Diagrams. This is known as AND Rule in probability. If M and B are independent - M not influencing B or vice versa If M and B are mutually exclusive, P(M n B) = 0. Let's focus on maths sphere first 5 of them are doing biology.įrom these observations, the following facts can easily be derived:. ![]() Doing biology, given that he or she doing maths.To represent this data and hence find the following: Suppose there are 60 students in a certain class: 30 of them are doing maths 20 of them doing biology 15 of them doing neither. There are 40 pupils in a class:15 do maths 20 do biology 8 do neither.
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