Question

11.If w1,w2,…,wn are the weights attached to the items x1,x2,…,xn, then the

weighted arithmetic mean is given by


a)(∑wi∑xi)/(∑xi)

b)(∑wixi)/(∑xi)

c) (∑wixi)/(∑wi)

d) (∑xi)/(∑wi)

Answer 1

Answer:

0 is a business

Step-by-step explanation:

l think Zero is a business

Answer 2

• weight = W$i$

• Attached items = X$i$

⇒ Total weight = ∑W$i$X$i$

⇒ weighted arithmetic mean =  ∑W$i$X$i$/∑X$i$

Hence, correct option is  (b)