mean of a data are . and . respectively. Find the coefficient of variation.
. The standard deviation and coefficient of variation of a data are . and . respectively.
Find the value of mean. . If the mean and coefficient of variation of a data are and respectively, then find the value of standard deviation. .
If n = , x = , Σ x , then calculate the coefficient of variation. . Find the coefficient of variation of , , , , , . .
The time taken (in minutes) to complete a homework by students in a day are given by , , , , , , , . Find the coefficient of variation. . The total marks scored by two students Sathya and Vidhya in subjects are and with standard deviation .
and . respectively. Who is more consistent in performance? .
The mean and standard deviation of marks obtained by students of a class in three subjects Mathematics, Science and Social Science are given below. Subject Mean SD Mathematics Science Social Science Which of the three subjects shows more consistent and which shows less consistent in marks?