Question 749515
Add up the total number of students:

{{{325+250+175+100+150}}}

{{{1000}}}

Now, the probability that the first student selected will be a freshmen is the number of freshmen divided by the total number of students:

{{{325/1000}}}

Now reduce the fraction:

{{{(65*5)/(200*5)}}}


{{{65/200}}}


{{{(13*5)/(40*5)}}}


{{{13/40}}}