Given median =15, mean=10. Find mode.
Find the mean of the following data, using step-deviation method: Class5−1515−2525−3535−4545−5555−6565−75Frequency61016152487
Calculate mean deviation using median and coefficient of mean deviation :
Class Intervals5−1515−2525−3535−4545−55Frequency54542
From the following data identify the median class: