The marks of 10 students in a class are 38, 70, 48,34 ,42, 55 63, 46, 54,44. Find the standard deviation of these marks.
The marks of 10 students in a class are 38, 70, 48,34 ,42, 55 63, 46, 54,44. Find the standard deviation of these marks.
The marks scored by 20 students in a Science test (30 marks) are given below : 8, 7, 12, 17, 20, 11, 16, 21, 28, 25, 27, 18, 20, 19, 7, 29, 16, 15, 20, 27. Using the data answer the following questions : What is the frequency of score 27?
Find the mean deviation about the mean for the data in 38, 70, 48, 40, 42, 55, 63, 46, 54, 44
The scores of a batsman in ten innings are : 38, 70, 48, 34, 42, 55, 63, 46, 54, 44,then the mean is
