Question

Median=49.2 sumation fi=90 find f1 & f2 mark freqn
20-30 f1
30-40 15
40-50 25
50-60 20
60-70 f2
70-80 8
80-90 10

Answer 1

Answer

Step-by-step explanation:

pehle x+y wali equation bana

phir median dekh

and put in formula