Question

anh randomly surveyed 36 students to see if there was interest in starting a seventh-grade science club. he found that 4 students said they would be interested. if 180 students are in the seventh grade, how many can be expected to join? 20 40 10 30

Explanation:

Step1: Find interest ratio

$\frac{4}{36} = \frac{1}{9}$

Step2: Calculate expected joiners

$180 \times \frac{1}{9}$

Answer:

20