Question

the marks of 12 students of class in maths are 35 30 15 47 25 20 43 50 40 30 45 40 how many student scored marks more than the average marks ​

Answer 1

Average marks = sum of marks of all students ÷ total students

= (35 + 30 + 15 + 47 + 25 + 20 + 43 + 50 + 40 + 30 + 45 + 40) ÷ 12

= 420 ÷ 12

Average marks = 35 marks

Marks below 35 are = 30, 15, 25, 20, 30

So, 5 students got marks below average.