Question

the coordinate 4 has a weight of 1, the coordinate 5 has a weight of 3, and the coordinate 11 has a weight of 1. find the weighted average. the weighted average is

Explanation:

Step1: Calculate the numerator

Multiply each value by its weight and sum them up. So, $(4\times1)+(5\times3)+(11\times1)=4 + 15+11=30$.

Step2: Calculate the denominator

Sum up the weights. So, $1 + 3+1=5$.

Step3: Calculate the weighted - average

Divide the numerator by the denominator. So, $\frac{30}{5}=6$.

Answer:

6