The Mean wage of 400 male reporters in a media industry was RS.300 per day and the mean wage of 260 female reporters was Rs.190 in the same industry. What would be the combine mean of the reporters?
Answers
Mean wage of 400 male reporters in a media industry = Rs. 300/day
Number of male reporters = 400
We know that Mean = Sum of the observations/Number of the observations
=> Sum of the observations = Mean * Number of observations
So Total sum of wages of male reporters = Mean wage of 400 male reporters in a media industry * Number of male reporters
= 300 * 400
= 120000
Total sum of wages of male reporters = Rs. 120000
Mean wage of 260 female reporters in a media industry = Rs. 190/day
Number of female reporters = 260
We know that Mean = Sum of the observations/Number of the observations
=> Sum of the observations = Mean * Number of observations
So Total sum of wages of female reporters = Mean wage of 260 female reporters in a media industry * Number of female reporters
= 190 * 260
= 49400
Total sum of wages of male reporters = Rs. 49400
Total sum of wages of male and female reporter in a media industry = 120000 + 49400 = Rs.169400
Total number of reporters in media industry = 400 + 260 = 660
We know that Mean = Sum of the observations/Number of observations
Combine mean = Total sum of wages of male and female reporter in a media industry/Total number of reporters in media industry
= 169400/660
= 256.667
So Rs.256.667 / day would be the combine mean of the reporters.