If the mean and S.D of a data are 8 and 2 respectively then the C.V is ____.

If the co-efficient of variation and S.D of a data are 35% and 7.7 respectively, then the mean is ___.

If the sum and mean of the data are 418 and 11 respectively then the no. of observation is the data is:

If the mean and standard deviation of a data are 8 and 2 respectively then the co-efficient of variation is ___.

The arithmetic mean and mode of a data are 24 and 12 respectively, then its median is (a) 25 (b) 18 (c) 20 (d) 22

The arithmetic mean and mode of a data are 24 and 12 respectively, then its median is (a) 25 (b) 18 (c) 20 (d) 22

The arithmetic mean and mode of a data are 24 and 12 respectively, then find the median of the data.

The arithmetic mean and mode of a data are 24 and 12 respectively,then find the medina of the data.

If the mean and S.D of a binomial distribution are 12 and 2 respectively, then

For a group of 200 candidates the mean and S.D. were found to be 40 and 15 respectively. Later on it was found that the score 43 was misread as 34. Find the correct mean and correct S.D.

For a group of 200 candidates the mean and S.D. were found to be 40 and 15 respectively. Later on it was found that the score 43 was misread as 34. Find the correct mean and correct S.D.