Question

14. The first group of Students consists
of 10 third divisioners with mean.
marks 36,15 second divisioners
with mean marks 56 and 25 lat
divisioners with 64 as their mean
marks Recond group of students
Consists of 13 third divisioners, 17
Second a divisioners and go first.
divisioners with mean marks 45.
55 and 74 respectively. Calculate
combined mean of two groups
Sepercutely and then the combined
mean
of the groups taken together?​

Answer 1

Answer:

sorry I don't know the answer