The given histogram represents the marks of students in Mathematics test of a certain class. The total number of students is 350 and the maximum marks of the test are 200. Study the graph and answer the question that follows.
What is the class average (correct up to one place of decimal) of mathematics test?
Show answer & explanation
Correct answer: A
Explanation
The correct answer is option 1 i.e. 119.3
given, total numbers of students = 350
total value of marks = 300+900+2240+4050+6600+9750+8250+6800+2850 = 41740
so, required average = 41740 / 350
= 119.257
= 119.3