Class X : HOTS Question Answers: Math Unit - 13 (STATISTICS AND PROBABILITY)

STATISTICS AND PROBABILITY

Compute the median from the following  1.      The sum of deviations of a set of values x1, x2, x3,…………x, measured from 50 is -10 and the sum of

The mean of ‘n’ observation is, if the first term is increased by 1, second by 2 and so on.  What will be the

The mode of a distribution is 55 & the modal class is 45-60 and the frequency preceding the modal

The mean of 30 numbers is 18, what will be the new mean, if each observation is increased  

In the graphical representation of a frequency distribution if the distance between mode and mean is k times the distance between median and mean then find the value of  k