Answer:
Answer: b. 20.8 ft-lb
Step-by-step explanation:
You don't even have to look up the definition of 'standard deviation'. You only
have to remember that 'smaller standard deviation' means 'less spread-out'.
First, let's find the mean (average). It's not supposed to change:
1/7th of (65 + 71 + 77 + 80 + 82 + 90 + 96) = 561/7 = <u>80 and 1/7</u> .
Now, just pick 7 scores that total 561 and are all bunched up.
The easiest way would be 80, 80, 80, 80, 80, 80, 81 .
But that's so easy that it feels like cheating.
Let's say <u>77, 78, 79, 80, 81, 82, and 84</u> .
u have to work more hard ☺️☺️☺️
<h3>
<u>Step-by-step explanation:</u></h3><h3>√x+8=-5+2</h3><h3>√x+8=-2+5</h3><h3>√x+8=3</h3><h3>x+8=9</h3><h3>x=9-8</h3><h3>x=1</h3><h3><u>
<em>I </em><em>hope </em><em>it'll </em><em>help </em><em>you</em><em>.</em><em>.</em></u></h3>
30% because 50-35=15 and 15 is 30% of 50 so you are losing 30%
