(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

P(r) = 1-(2r^{2}+2r+1)e^{-2r}

i know that p(r) is just the derivative of P(r)

to find the median i would just integrate from o to r and set that equal to .5

but when you integrate youre just going back to P(r) from 0 to r

so i get

1-(2r^{2}+2r+1)e^{-2r}= .5

how would i go about solving this since i have the r's inside the parentheses and then the e raised to the -2r?

1. The problem statement, all variables and given/known data

2. Relevant equations

3. The attempt at a solution

**Physics Forums | Science Articles, Homework Help, Discussion**

Join Physics Forums Today!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

# Homework Help: Mean and median

**Physics Forums | Science Articles, Homework Help, Discussion**