The arithmetic mean of a set of observations is `bar(X)`. If each observation is divided by `alpha` and then is increased by 10, then the mean of the new series is

Mean of a certain number of observations is bar(x) If each observation is divided by m(m!=0) and increased by n, then the mean of new observation is

The mean of a certain number of observations is m. If each observation is divided by x(ne 0) and increased by y, then

The mean of a set of observations is a . If each observation is multiplied by b and each product is decreased by c , then the mean of new set of observations is

The mean of a set of observation is a. If each observation is multiplied by b and each product is decreased by c, then the mean of new set of observations is ______.

The arithmetic mean of a set of 10 numbers is 20. If each number is first multiplied by 2 and then increased by 5, then what is the mean of new numbers ?

The means of a set of numbers is bar(X) . If each number is divided by 3, then the new mean is

Mean of a certain number of observations is x . If each observation is divided by m(m!=0) and increased by n , then the mean of new observation is (a) ( x )/m+n (b) ( x )/n+m (c) x +n/m (d) x +m/n