Question

The means of two gropus of 15 and 20 observations are 20 and 25 respectively. Find the
mean of all the observations.​

Answer 1

Answer:

please follow karlo dear friends. good morning all my dear friends. have a nice day❤❤please follow karlo dear friends. good morning all my dear friends. have a nice day❤❤please follow karlo dear friends. good morning all my dear friends. have a nice day❤❤please follow karlo dear friends. good morning all my dear friends. have a nice day❤❤