Question

Find the weighted average of these values

Answer 1

I am pretty sure that the main thing that we should do to solve this task is to do this : $5(0.75)+6(0.15)+7(0.10)$$3.75+0.9+0.7 5.35$ which is weighted average as it only can be found by adding the products of each corresponding value. Hope everything is clear! Regards!

Answer 2

Answer:

Weighted Average =  Σwx /  Σw = 5.35  / 1 = 5.35

Step-by-step explanation:

The Formula for calculating the Weighted Average of a data set is;

Weighted Average =  Σwx /  Σw

Where

Σwx - Is the sum of the product of each weight, and its value

Σw - Is the sum of each weight

In  this case,

Σwx = (5.00 * (75.0 / 100)) + (6.00 * (15.0 / 100)) + (7.00 * (10.0 / 100))

       = (5.00 * 0.75) + (6 * 0.15) + (7 * 0.10)

       = 3.75 + 0.90 + 0.70

       = 5.35

Σw   = (75.0 / 100) + (15.0 / 100) + (10.0 / 100)

       = 0.75 + 0.15 + 0.1

       = 1

Hence, Weighted Average =  Σwx /  Σw = 5.35  / 1 = 5.35