The bar chart shows the scores of some students in a test. How many students took the test?
A.
18
B.
19
C.
20
D.
22
Correct answer is C
score 0 = 4 students
score 1 = 2 students
score 2 = 5 students
score 3 = 6 students
score 4 = 3 students
= 20 students