(a) construct an un-grouped frequency distribution and relative frequency distribution for the heights.
Answer: The un-grouped frequency distribution and relative frequency distribution for the heights is given below:
Heights (Inches) Frequency Relative Frequency
64 2 
65 4 
66 3 
67 3 
68 2 
69 2 
71 2 
Since we know f(x)=11 all we need to do is substitute and solve. so
11=-2x+3 subtract 3 from both sides
8=-2x divide both sides by -2
-4=x
sub back in to check
-2(-4)+3=8+3=11 looks good
The correct answer to this problem would be d
Surface area define or calculate the exact space that each face of the said shape is taken up while the volume is how much space is inside the said object. The area use the unit that is squared because it only measured 2 face in the shape while the volume measures 3 faces in the object. an example of an area is a card board area, while the volume is the glass of water.