Question

5) The marks of 35 students of a class in a Mathematics test out of 50 marks is given below. Find the mean. Marks 20 25 30 35 40 45 50 No.of students 02 03 06 11 02 05​

Answer 1

Answer:

36.7 marks

Step-by-step explanation:

(20x2) + (25x3) + (30x6) + (35x11) + (40x2) + (45x5) + (50x6) = 1285

1285/35 students = 36.7142857 = 36.7 (1dp) OR 37 (2sf)

2 students got 20 marks, therefore 20 is present twice.

3 students got 25 marks, therefore 30 is present three times. etc.

Answer 2

Answer:

sorry

Step-by-step explanation:

The marks of 35 students of a class in a Mathematics test out of 50 marks is given below.Find the mean