Say I want to generate random variables from the probability distribution p={ 2-2x 0<x<1 0 ....

Say I want to generate random variables from the probability distribution

p={ 2-2x 0<x<1

0 . elsewhere

My scheme is to generate U's from [0,1],double them and plug them into the probability distribution. So U = 0.3 gives me p(0.6)=0.8 as random variable. Prove my idea is right or wrong.

Expert Solution

You are right except you forgot to subtract it from 2.

I generated 1000 x and calculated f(x)=2-2(x).

This is a sample from it.

X f(x)
0.107907   1.78419
0.403739   1.19252
0.427420   1.14516
0.909383   0.18123
0.050595   1.89881
0.132632   1.73474
0.215042   1.56992
0.901474   0.19705
0.347013   1.30597
0.573234   0.85353
0.051896   1.89621
0.889484   0.22103
0.829647   0.34071
0.548284   0.90343
0.774248   0.45150
0.589716   0.82057
0.799201   0.40160

Descriptive Statistics: X, f(x)

Total
Variable Count Mean StDev Median IQR
X 1000 0.48803 0.29540 0.49065 0.52513
f(x) 1000 1.0239 0.5908 1.0187 1.0503

orchestra answered 2 years ago

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