AboutJosh Expertise When I work through problems, I emphasize principles and key ideas which I believe are worth noting. I will try to answer questions in the following areas, but not at the advanced level. Algebra. Sequences & Series. Trigonometry. Functions & Graphs. Coordinate Geometry. Quadratic Polynomials. Exponentials & Logarithms. Basic Calculus. Probability, Permutations and Combinations. Mathematical Induction. Complex numbers. Physics problems.
Experience
Experience: I have worked as a teaching assistant in college. My hope is that more people will share knowledge without boundary, give help without seeking recognition or monetary rewards.
Supplementary Website: See a selection of past questions in my maths repository under "Question Archive"
Education Credentials: Bachelor degree in Engineering Science."Everyone struggles with something."
Highland403 wrote at 2009-02-26 21:11:44
I was searching for an explanation to weighted average for bare land appraisal purposes when I came across this example.
Sorry, but the answer to the weighted average formula previously posted seems to be just an average of the items listed. I don't see where the weighted part comes in.
Shouldn't a weighted average answer be a little different than just an average because some of the items somehow have more significance? In the example given, the answer is 4.555... This is exactly the same answer you get by just adding the items up and dividing by the number of items.
