Question

Find the weighted mean. Round your answer to the nearest tenth. Deliveries Each Week 2 4 6 8 Frequency 3 7 5 2 Weighted mean =

Answer 1

Given:

Deliveries each week: 2 4 6 8

Frequency: 3 7 5 2

Let's use the deliveries each week as the weighting.

We have:

Deliveries x Frequency:

$\begin{gathered} 2\ast3\text{ + 4}\ast7\text{ + 6}\ast5\text{ + 8}\ast2\text{ } \\ =\text{ 6 + 28 + 30 + 16 = 80} \end{gathered}$

Now, add up the number of deliveries each week:

2 + 4 + 6 + 8 = 20

To find the weighted mean, we have:

$\text{Weighted mean = }\frac{80}{20}=\text{ 4}$

Therefore, the weighted mean is 4

ANSWER:

Weighted mean = 4