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Venn Diagrams Probability SACHS
Contributed by: Shanahan
Group B has 38 in total, complete the diagram.
8
23
A
5
B
There are 45 people in the complete group.
Complete the diagram.
5
18
A
B
15
* Careful, some people have been counted twice.
There are 50 people altogether.
Group A has 30 people.
Group B has 24 people.
Complete the diagram.
7
A
B
Hint: from Group A only, not everybody.
The probability that someonefrom group A is also in group B =
7
23
A
5
B
21
What is the probability of choosing
someone from the complete group
that is in group B only?
12
12
A
8
B
9
Hint: from Group A or B, not everybody.
What is the probability that
a member of group A or B is
a member of both groups?
4
16
A
6
B
15
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