Question

calculate mean and median mode from following data. central value and frequency: 45-32 ,55-65,65-128,85 -126, 95-79,105-43.
plzz fast .I u don't know plzz don't answer other may​

Answer 1

Answer:

to find cummulative value just add the frequencies of that class from sum of upper frequencies

for ex:-

Class frequency cf

61-70 5 5

71-80 15 20

81-90 20 40

91-100 30 70

101-110 20 90

111-120 8 98