Number of membersin 10 families, collected by mathematics club survey are given. Calculate mean, median and explain which is the suitable average?4, 2,3,5, 4, 3, 2,20,4,3

Which among is the smallest number? (2,0,-4 ,-3)

Find the mean deviation about the median fơr the following data: 3,9,5,3,12,10,18,4,7,19 , 21.

Find the mean deviation from the median for the following data:3,9,5,3,12,10,18,4,7,19,21.

The vertices of triangleABC are A(2,1), B(-3,5) and C(4,5). Find the equation of the median through the vertex B.

Find the mean deviation about țhe mean for the following data: 12,3,18,17,4,9,17,19,20, 15,8,17,2,3,16,11 , 3,1,0,5.

Read the following and answer the questions given below. 1,2,3,4….are natural numbers or counting numbers. The sum of first 4 numbers is 1+2+3+4=(1+4)+(2+3) = 5+5 = 5xx2 =(4+1)+4/2 We can make pairs as given above and can establish a formula to find the sum of first n natural numbers as sum = (1+n)xxn/2 What is the number at the right and of 10^th line 1 2 3 4 5 6 7 8 9 10 .............

The vertices of ∆PQR are P(2, 1), Q(−2,3) and R(4,5). The equation of median through the vertex R is

(a)Find the mean deviation about the mean for the following data:12,3,18,17,4,9,17,19,20,15,8,17,2,3,16,11,3,1,0,5.