Question

Average marks of all 33 students in a class = 90
Average marks of top 3 students are 98, 95 & 92
Average marks of remaining 30 students = ?
Please solve this question step-by-step. ​

Answer 1

Answer:

41,39,48,52,46,62,54,40,96,52,98,40,42,52,60

Mean =

15

41+39+48+52+46+62+54+40+96+52+98+40+42+52+60

=

15

822

=54.8;

Number of observations =15 (odd)

Median score =8th number arranging in ascending order which is 52.

Maximum frequency =3 of 52

∴ Mode =52..

Answer 2

Answer:

3070/30

Step-by-step explanation:

Average marks of all 33 students in a class = 90

Average marks of total students in a class = 90*30 = 3070

Average marks of remaining students in a class = 3070/30