Answer:
I think so
Step-by-step explanation:
Answer:
521cm^2
Step-by-step explanation:
wth ur so lazy
20*16
then
8^2*3.14
320+200.96
Z = (X-Mean)/SD
<span>z1 = (580-600)/20 = - 1 </span>
<span>z2 = (620-600)/20 = + 1 </span>
<span>According to the Empirical Rule 68-95-99.7 </span>
<span>Mean +/- 1*SD covers 68% of the values </span>
<span>Therefore, required percent is 68%
hopes this help :) :D :)</span>