Question

Madelyn is running for seventh grade class president. sixty students were randomly chosen to take a survey asking if they planned on voting for Madelyn. fifteen students said they plan on voting for her. there are a total of 140 seventh grade students. based on the survey how many people will likely vote for MadelynA.35B.70C.215D.4

Answer 1

A sample of 60 students were taken.

Out of which only 15 said that they will vote for Madelyn.

There are 140 7-th grade students.

Based on the sample data, we want to know how many might vote for Madelyn.

Well, it's quite simple.

15 out of 60 will vote for Madelyn

That is:

$\frac{15}{60}=\frac{1}{4}$

So, 1/4th of total students will vote for Madelyn.

That is:

$\frac{1}{4}\times140=35$

Based on the sample data, 35 people are expected to vote for Madelyn [out of total of 140 people].