Question

calculate the arithmetic mean:
age group: 14-15 16-17 18-20 21-24 25-29 30-34 35-39
no.of wage earners: 60 140 150 110 110 100 90

Answer 1

its difficult to calculate the mid value here coz the common difference is changing

Answer 2

I don't think the age group ranges are important, wouldn't you just take the mean of 60 140 150 110 110 100 90

Answer 3

no its not done that way in grouped frequency

Answer 4

@Nnesha @rishavraj

Answer 5

@toxicsugar22 @panlac01 @jazzyspazzy @TWfan @

Answer 6

i think you should first take out the midean of the class like 14-15 means 14.5
put that in table and do as you do for ordinary tables...
hope it is useful to you