13D- expected values, variance and standard deviation
11I- The area between two curves
Objective: using integration to evaluate the area between two curves, we need to: 1) solve for the intersection point (x-values) 2) if f(x) is above g(x), we subtract g(x) from f(x) and find the definite integral between [a,b] 3) ignore the negative area, don't have to invert [a,b]-->[b,a] like we did in Ex 11H. The negative areas will cancel out in this case
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