Question

Given the frequency table, what percentage of the students in grades 9–10 like rap music? Round to the nearest whole percent. Band Preference for School Dance RapRockCountryRow totals Grades 9–10403055125 Grades 11–12652035120 Column totals1055090245

Answer 1

Case: Percentage

Given: Frequency table

Required: To find the percentage of the students in grades 9–10 like rap music

Method:

Step 1: First we find the total number of people in grades 9–10.

We see clearly from the tables that 125 students are in grades 9–10.

Step 2: Next we find the number of people in grades 9–10 who like rap music.

There are 40 students in grades 9–10 who like rap music.

Step 3: We express as this as a percentage of the whole

`\begin{gathered} (40)/(125)*100 \\ =32 \end{gathered}`

This is 32% of the students in grades 9-10.

Final answer:

32% of students of the students in grades 9–10 like rap music