The weighted average of these values is 29.72%.
Weighted Average
Weighted average is the average of a set of numbers, each with different associated weights or values. The weighted arithmetic mean is similar to an ordinary arithmetic mean.
From the question:
[tex]weighted\ average=\frac{5*0.75+6*0.15+7*0.1}{5+6+7} =0.2972=29.72\%[/tex]
The weighted average of these values is 29.72%.
Find out more on weighted average at: https://brainly.com/question/18554478