Question

a group of 500 middle school students were randomly selected and asked about their preferred television genre. a circle graph was created from the data collected.
preferred television genre
sports 22%
drama 14%
documentaries 24%
reality 20%
sci-fi
how many middle school students prefer the sci-fi television genre?
100
80
72
20

Explanation:

Step1: Calculate total known percentage

$22\% + 14\% + 24\% + 20\% = 80\%$

Step2: Find Sci-Fi percentage

$100\% - 80\% = 20\%$

Step3: Compute number of students

$500 \times 20\% = 500 \times 0.2$

Answer:

100