Standard deviation=4.
let the mean be 12 and the score be 0 (therefore 12 point difference.)
0-12/s=-3 (s being standard deviation)
-12/4 = -3
7 meters.
1 meter is 100 centimeters. 700/100=7.
Answer:
<h2>72</h2>
Step-by-step explanation:
![n!=1\cdot2\cdot3\cdot...\cdot n\\\\\dfrac{9!}{(9-2)!}=\dfrac{9!}{7!}=\dfrac{7!\cdot8\cdot9}{7!}\qquad\text{cancel}\ 7!\\\\=8\cdot9=72](https://tex.z-dn.net/?f=n%21%3D1%5Ccdot2%5Ccdot3%5Ccdot...%5Ccdot%20n%5C%5C%5C%5C%5Cdfrac%7B9%21%7D%7B%289-2%29%21%7D%3D%5Cdfrac%7B9%21%7D%7B7%21%7D%3D%5Cdfrac%7B7%21%5Ccdot8%5Ccdot9%7D%7B7%21%7D%5Cqquad%5Ctext%7Bcancel%7D%5C%207%21%5C%5C%5C%5C%3D8%5Ccdot9%3D72)
Answer:
the answer is yes
Step-by-step explanation: