use the chart of quiz scores to find the weighted mean.\nthe weighted mean is \n(round to the nearest…
use the chart of quiz scores to find the weighted mean.\nthe weighted mean is \n(round to the nearest tenth.)\n| quiz scores | weight |\n| ---- | ---- |\n| 8 | 2 |\n| 11 | 4 |\n| 12 | 2 |\n| 14 | 4 |
Answer
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:
$11.3$