Question

Which describes a bar diagram showing the percent of students who participated in dances?1 shaded square out of 10 squares2 shaded squares out of 10 squares3 shaded squares out of 10 squares4 shaded squares out of 10 squares

Answer 1

From the information on the pie chart, the proportion of students that participated in dances is 20 out of 100.

Then, if we represent this in a bar chart where 100% is 10 squares, the proportion of students that participated in dances should be represented by:

$\begin{gathered} 100\%\longrightarrow10\text{ squares} \\ \frac{20}{100}\cdot100\%=20\%\longrightarrow\frac{20\%}{100\%}\cdot10=2\text{ squares} \end{gathered}$

Answer: 2 shaded squares out of 10 squares