The total students who study Biology or Chemistry or Both is 30 .
What is a Venn -Diagram ?
A Venn Diagram is a representation of data in graphical form, to make the data more understandable .
A Venn diagram is given
It has been asked to determine the number of students who study Biology or Chemistry or Both
P( C | B | B∪C) = ?
From the figure
P( C | B | B∪C) = 9+4+8+3+5+1 = 30
Therefore the total students who study Biology or Chemistry or Both is 30 .
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