Question

If we have 15 boys and 5 girls in a class which carries a higher probability? Getting a copy belonging to a boy or a girl. Can you give it a value? 

Answer 1

\[\text{ Number of boys in the class } = 15\]
\[\text{ Number of girls in the class } = 5\]
\[\text{ Total number of students in the class  }= 15 + 5 = 20\]
\[ \therefore \text{ Number of possible outcomes } = 20\]
\[\text{ Since the number of boys is more than the number of girls, boys will have a higher probability }. \]
\[\text{ Hence, there is the higher probability of getting a copy belonging to a boy }. \]
\[\text{ Let A be the event of getting a boy's copy and B be the event of getting a girl's copy  }. \]
\[ \therefore P\left( A \right) = \frac{15}{20} = \frac{3}{4} \]
\[\text{ And }, P\left( B \right) = \frac{5}{20} = \frac{1}{4}\]