Question

use the chart of quiz scores to find the weighted mean.
the weighted mean is
(round to the nearest tenth.)

quiz scores	weight
11	4
12	2
14	4

Explanation:

Step1: Calculate the product of each score - weight pair

$6\times2 = 12$, $11\times4=44$, $12\times2 = 24$, $14\times4=56$

Step2: Sum up the products

$12 + 44+24 + 56=136$

Step3: Sum up the weights

$2 + 4+2 + 4 = 12$

Step4: Calculate the weighted - mean

$\frac{136}{12}\approx11.3$

Answer:

$11.3$