Explore BrainMass

Probability Density Function


Here are questions 33 and 34 to assist in answering question 52. 33) Let X be a random variable with probability density f(x)={c(1-x^2), -1<x<1 0 otherwise (a) What is the value of c? (b) What is the cumulative distribution function of X? 34) Let the probability

Microscopic Toolmark Analysis

I am conducting research on microscopic toolmark analysis. If I have a toolmark with 27 striations (lines) of varying spatial relationships (orientations), widths and densities, do I use the combination formula to determine the probablity that another toolmark will by chance have a group of at least eight consecutively matching