I already have the full solution to this so I'm not looking for an answer, I am hoping to get an explanation of certain parts that are unclear.
Question:
A random variable X has the following CDF:
f(x) =\left\{ \begin{array}{lr} 0& x<0\\ \frac{x^2-2x+2}{2} & 1 \le x < 2 \\ 1 & x \ge 2...
Almost makes perfect sense, just would like clarification about the f(x_i)=f(i \times \Delta x) part. If that's true than I see f(x_i) as \left( 1+ 3 \left[ i \times \frac{2}{n} \right] \right). I know that's just rewriting what you posted but writing it this way seems to confirm my stated...
Question:
A solid has a rectangular base that lies in the first quadrant and is bounded by the x and y-axes and the lines x=2, y=1. The height of the solid above point (x,y) is 1+3x. Find the Riemann approximation of the solid.
Solution:
I already know that the solution is \sum_{i=1}^{n}...
Question:
An urn contains 10 balls: 4 red and 6 blue. A second urn contains 16 red balls and an unknown number of blue balls. A single ball is drawn from each urn. The probability that both balls are the same color is .44. Calculate the number of blue balls in the second urn.
My attempt
I...