Explore BrainMass

Gaussian Distribution and Fourier Transforms

This content was STOLEN from BrainMass.com - View the original, and get the already-completed solution here!

1. The Fourier Transform of the probability density, P(x) is

T(k) =  (e^(ikx)}*P(x) dx
and is called the characteristic function of the random variable x. Let F(k) = log (T(k)) and show that

a) F(0) = 0
b) F'(0) = i<x>
c) F'' (0) = i<(x)^2>

2. Take P(x) to be the Gaussian distribution:
P(x) = {1/[(2 Pi)^.5 * ()]}* e^-{(x-xo)^2/(2^2)
Calculate the Characteristic function (see above) and obtain <x> and <(x)^2> using the F(x) from part 1 above.

© BrainMass Inc. brainmass.com October 16, 2018, 8:58 pm ad1c9bdddf


Solution Summary

Gaussian distribution and Fourier transforms are examined to determine the probability density.

Similar Posting

Statistical Terms in Managerial Finance

Briefly describe: a statistical relation, time series, cross section, least squares, See, r, R-squared, t-value, multicollinearity and serial correlation.

View Full Posting Details