Question

the graph shows the results of a survey that asked students to identify their favorite elective. how many students completed the survey?
a. 20
b. 25
c. 17
d. 4

Explanation:

Step1: Identify the number of students for each elective

From the bar - graph:
Art: \(3\) students
Band: \(5\) students
Choir: \(1\) student
Computer Science: \(4\) students
Dance: \(5\) students
Drama: \(2\) students

Step2: Sum up the number of students

$$3 + 5+1 + 4+5 + 2=\sum_{i = 1}^{6}x_{i}$$

$$3+5 = 8$$

$$8 + 1=9$$

$$9+4 = 13$$

$$13+5 = 18$$

$$18+2=20$$

Answer:

A. 20