Area of <span>parallelogram
A = bh
so
b = A/h
b = </span><span>216.24 / 15.9
</span>b = 13.6
answer
<span>base of the parallelogram = 13.9 cm</span>
The mean is 35/5=7
The variance is the average of the sum of squared differences of each element from the mean:
v=((7-7)^2+(5-7)^2+(11-7)^2+(1-7)^2+(11-7)^2)/5
v=(0+4+16+36+16)/5
v=14.4
No. It is not. Only what's inside counts.