Question

A teacher has 14 senior students, 7 junior students, 4 sophmore, 5 freshmen, what is the proabability that she chooses a senior?

Answer 1

14/30 or 7/15

Explanation:

probability = no. of senior students / total no. of students

probability = 14 / (14+7+4+5)

probability = 14/30

This can be simplified to 7/15.

Hope this helps!

Answer 2

7/15

Explanation:

To find the probability the student is a senior

P( senior) = number of seniors / total students

= 14 / ( 14+7+4+5)

= 14/30

= 7/15