Question

pyper has been tracking her change in weight each week for 8 weeks, and the table shows the results. what is pypers average change in weight throughout the 8 - week period? - 10 pounds - 1.25 pounds 2.5 pounds 8 pounds

Explanation:

Step1: Sum the weight changes

We add up all the change in weight values: $-5 + 2 + (-3) + (-4) + (-1) + (-2) + 1 + 2$.
First, calculate step by step: $-5 + 2 = -3$; $-3 + (-3) = -6$; $-6 + (-4) = -10$; $-10 + (-1) = -11$; $-11 + (-2) = -13$; $-13 + 1 = -12$; $-12 + 2 = -10$.

Step2: Calculate the average

The average is the sum divided by the number of weeks (8). So we do $\frac{-10}{8}$.
Simplify $\frac{-10}{8}$ to get $-1.25$.

Answer:

-1.25 pounds (corresponding to the option: -1.25 pounds)