Question

2.A group of students in MATH 105 start a walking program. The chart below shows eachmember's self-reported walking time in minutes during May 2022.X-300A-325B-550C-400D - 900E-150F-60G-600H - 250By what percent did X exceed or fall below the mean? it’s number 2

Answer 1

Given: 300, 400, 60, 325, 900, 600, 550, 150, 250

1st we find the mean or avaerage of all the numbers.

Mean:

$\frac{300+400+60+325+900+600+550+150+250}{9}=\frac{3525}{9}\approx392.778$

From here we can see that X=300 falls below the mean.

So we can use this formula:

$\frac{mean-actual\text{ }value}{mean}*100\%\Rightarrow\frac{392.778-300}{392.778}*100\%\approx23.688\%$

Answer: X falls below the mean by 23.688%