The mean of first 8 observations is 18 and last 8 observations is 20. If the mean of all 15 observations is 19, find the 8th observation
The mean of 15 observations is 8. If the mean of the first eight observations is 7 and that of the last eight observations is 10, then find the value of the 8th observation.
The mean of 15 observations is 8. If the mean of the first eight observations is 7 and that of the last eight observations is 10, then the value of the 8th observation is _____.
The mean of 15 observations is 8. If the mean of the values of first eight observations is 7 and that of the values of last eight observations is 10, then the value of the 8th observation 16.