Answer:
True
Step-by-step explanation:
The variance of a data set gives you a rough idea of how spread out your data is. A small number for the variance means your data set is tightly clustered together and a large number means the values are more spread apart.
Answer:
27 cm
Step-by-step explanation:
So the ratio you have is
width(x) : length (36)= 3:4
Divide 36 (length) by the ratio length. 36÷4=9
They are multiples of nine, so multiply the width by 9 to get the 3.
3×9=27
You have 27:36
If you want to check it, divide both by 9 and you get 3:4
Mathematically the answer would be a never ending decimal (3.87298...) but in this case it would be 3.9
Answer: 1.91
Step-by-step explanation:
V=54m³
r=3m
V=r²π*H
h=V/r²π
H=54/9π
H=1.91m