Following are the marks of 37 students: {:("Marks",4,6,8,10,12,14),("No. of Students",5,7,6,8,6,5):} Calculate mean marks, using Short-cut Method.

Following are the marks of 37 students: {:("Marks",4,6,8,10,12,14),("

1.	Following are the marks of 37 students: {:("Marks",4,6,8,10,12,14),("No. of Students",5,7,6,8,6,5):} Calculate mean marks, using Short-cut Method.
Answer» Solution : `barX = A+(sumfd)/(SUM f)` `=10+(-38)/37` `=10-1.03 = 8.97` mean MARKS = `8.97`.