We are given the table that shows how many students prefer school uniforms and how many do not.

Prefer School Uniforms
No	Yes
$IIII$ $IIII$ $IIII$ I	IIII

We can see that

16

students do not prefer school uniforms and

4

students do prefer school uniforms. First, let's find the total number of surveyed students.

16 + 4 = 20

To find what percent of students do not prefer school uniforms, we will find the fraction of students who do not prefer school uniforms. Then, we will rewrite it as a percent. This fraction has the number of students who do not prefer school uniforms in the numerator and the total number of students in the denominator.

\frac{1 6}{2 0}

To write the fraction as a percent, we need to find an equivalent fraction with a denominator of

100 .

\frac{1 6}{2 0} = \frac{x}{1 0 0}

We can multiply

20

by

5

to get

100,

so will also multiply

16

by

5

to get an equivalent fraction.

Now we can write the new fraction as a percent by looking at the numerator and adding a percent symbol.

\frac{8 0}{1 0 0} = 80 %

We found that

80 %

of students do not prefer school uniforms. To find the percent of students who do prefer school uniforms, we can subtract

80 %

form

100 % .

100 % - 80 % = 20 %

We found that

80 %

of students do not prefer school uniforms and

20 %

do prefer them.

Exercise