A) \[\frac{2}{5}\]
B) \[\frac{3}{4}\]
C) \[\frac{3}{5}\]
D) \[\frac{3}{10}\]
E) None of these
Correct Answer: A
Solution :
Explanation Option [a] is correct, \[P(E)\,=\frac{30}{100}=\frac{3}{10},P(H)=\frac{20}{100}=\frac{1}{5}\,and\,P(E\cap H)=\frac{10}{100}=\frac{1}{10}\] \[P(E\,\,or\,H)=P(E\cup H)=P(E)+P(H)-P(E\,\cap H)\] \[=\left( \frac{3}{10}+\frac{1}{5}-\frac{1}{10}=\frac{4}{10}=\frac{2}{5} \right).\]You need to login to perform this action.
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