A committee of eight math instructors and ten science instructors need to select two people from each group to send to a conference. What is the probability of selecting two math instructors and two science instructors?

Respuesta :

Choosing two math instructors out of 8 would be

[tex]P=\frac{2}{8}=\frac{1}{4}[/tex]

Choosing two science instructors out of 10 would be

[tex]P=\frac{2}{10}=\frac{1}{5}[/tex]

Given that they are independent events, we multiply their probabilities

[tex]P=\frac{1}{4}\times\frac{1}{5}=\frac{1}{20}[/tex]

Hence, the probability of selecting two math instructors and two science instructors is 1/20.