Question

finding the ratio from a table
jeremy wants to start a 7th-grade summer reading club at his middle school. he surveyed thirty 7th-grade students at the community pool. he asked each student how many books they had read during the month of july.
he obtained these results:
8, 5, 0, 1, 2, 3, 6, 3, 0, 4, 7, 4, 3, 3, 5, 2, 1, 3, 2, 1, 0, 4, 1, 2, 4, 2, 3, 7, 6, 0
what is the ratio of the total number of students who did not read books to the total number of students surveyed?

Explanation:

Step1: Count students who read 0 books

Count the number of 0s in the data: 0 appears 4 times.

Step2: Confirm total surveyed students

The problem states 30 students were surveyed.

Step3: Set up the ratio

Ratio = (Students who read 0 books) : (Total students)
Expression: $4:30$

Step4: Simplify the ratio

Divide both values by their greatest common divisor (2): $\frac{4}{2}:\frac{30}{2} = 2:15$

Answer:

$2:15$