Chapter 8 / applications Flashcards
1
Q
general Total Area
A
Sum of wi multiplied by Δh. Take the limit as the number of slices goes to infinity to get the integral.
2
Q
how to find the area of a circle
A
take concentric stips (circumfrences), each one of them equal to 2 pi times the radius at that point.
3
Q
When density varies throughout an object
A
(1) slice into parts with equal density, (2) approximate mass as a riemman sum of (density equation * area) (3) take a limit that turns into an integral
4
Q
How do we get mass/population?
A
Density multiplied by area.
5
Q
Mean value using pdf
A
mean value = ∫ (of whole thing) x*p(x) dx
