Question

Casey polled 50 seventh grade students. He asked who they planned to vote for as class president. Thirty students said they would vote for Lynne. Twenty said they would vote for Marcus.

Use this probability to predict how many seventh graders in their class of 450 students will vote for Lynne

Answer 1

270 students

Explanation:

First, you need to do a ratio.

30 x

------- = --------

50 450

In order to solve this, you need to multiply 450 times 30 and that equals 13500. 13500 divided by 50 is 270. That means that about 270 students will vote for Lynn.