A sample of 6 students has the mean marks as 4. A second sample of 4 students has the mean marks as 9. If these two samp
Posted: Mon Nov 15, 2021 10:11 am
A sample of 6 students has the mean marks as 4. A second sample of 4 students has the mean marks as 9. If these two samples are combined, then mean of combined samples will be Select one: O 6 O 13 O 20 O 10