Question

stacy likes to do aerobics 10 hours a week to stay in shape. she tracks the amount of time she does aerobics each week relative to her goal. the table shows the data for the last five weeks. week 1 2 3 4 5 aerobics time (hours) 2.8 -2 1\frac{3}{4} 0 -3 what is the average aerobics time per week for stacy relative to her goal number of hours? drag a value to the box to complete the statement. relative to stacys goal, her average aerobics time over the last five weeks is hours

Explanation:

Step1: Convert mixed - number to decimal

$1\frac{3}{4}=1 + \frac{3}{4}=1.75$

Step2: Find the sum of the data

$2.8+( - 2)+1.75 + 0+( - 3)=2.8-2 + 1.75-3=(2.8 + 1.75)-(2 + 3)=4.55 - 5=-0.45$

Step3: Calculate the average

The average is the sum divided by the number of data points. There are 5 data points. So the average is $\frac{-0.45}{5}=-0.09$

Answer:

$-0.09$