Added Laplace probability distribution
Added Laplace probability distribution

Vishluck/sympy,MridulS/sympy,shikil/sympy,meghana1995/sympy,postvakje/sympy,farhaanbukhsh/sympy,oliverlee/sympy,wyom/sympy,jaimahajan1997/sympy,emon10005/sympy,AunShiLord/sympy,kaichogami/sympy,saurabhjn76/sympy,hargup/sympy,wanglongqi/sympy,postvakje/sympy,abloomston/sympy,Arafatk/sympy,chaffra/sympy,farhaanbukhsh/sympy,souravsingh/sympy,Davidjohnwilson/sympy,mcdaniel67/sympy,grevutiu-gabriel/sympy,maniteja123/sympy,hrashk/sympy,MechCoder/sympy,kmacinnis/sympy,Vishluck/sympy,kmacinnis/sympy,Shaswat27/sympy,diofant/diofant,Davidjohnwilson/sympy,jamesblunt/sympy,vipulroxx/sympy,jaimahajan1997/sympy,abhiii5459/sympy,pbrady/sympy,ahhda/sympy,Titan-C/sympy,Mitchkoens/sympy,aktech/sympy,sahmed95/sympy,atreyv/sympy,toolforger/sympy,souravsingh/sympy,kumarkrishna/sympy,sunny94/temp,cccfran/sympy,sunny94/temp,ChristinaZografou/sympy,MridulS/sympy,emon10005/sympy,VaibhavAgarwalVA/sympy,dqnykamp/sympy,mcdaniel67/sympy,yashsharan/sympy,iamutkarshtiwari/sympy,mafiya69/sympy,aktech/sympy,meghana1995/sympy,dqnykamp/sympy,pandeyadarsh/sympy,sahmed95/sympy,jamesblunt/sympy,emon10005/sympy,Davidjohnwilson/sympy,bukzor/sympy,meghana1995/sympy,abhiii5459/sympy,Designist/sympy,oliverlee/sympy,Sumith1896/sympy,Arafatk/sympy,beni55/sympy,maniteja123/sympy,kaichogami/sympy,cswiercz/sympy,moble/sympy,aktech/sympy,Designist/sympy,cswiercz/sympy,garvitr/sympy,kmacinnis/sympy,kevalds51/sympy,hrashk/sympy,atreyv/sympy,garvitr/sympy,toolforger/sympy,Designist/sympy,hargup/sympy,Vishluck/sympy,moble/sympy,pandeyadarsh/sympy,AkademieOlympia/sympy,grevutiu-gabriel/sympy,madan96/sympy,beni55/sympy,pbrady/sympy,amitjamadagni/sympy,Mitchkoens/sympy,ChristinaZografou/sympy,sahilshekhawat/sympy,jerli/sympy,iamutkarshtiwari/sympy,drufat/sympy,farhaanbukhsh/sympy,kumarkrishna/sympy,flacjacket/sympy,sampadsaha5/sympy,yashsharan/sympy,kevalds51/sympy,madan96/sympy,dqnykamp/sympy,kumarkrishna/sympy,maniteja123/sympy,Sumith1896/sympy,vipulroxx/sympy,jaimahajan1997/sympy,Sumith1896/sympy,AkademieOlympia/sympy,sampadsaha5/sympy,iamutkarshtiwari/sympy,AunShiLord/sympy,yukoba/sympy,moble/sympy,ga7g08/sympy,yashsharan/sympy,Arafatk/sympy,debugger22/sympy,kaushik94/sympy,sahmed95/sympy,Gadal/sympy,MechCoder/sympy,Gadal/sympy,wanglongqi/sympy,Gadal/sympy,beni55/sympy,mcdaniel67/sympy,Curious72/sympy,MechCoder/sympy,pandeyadarsh/sympy,rahuldan/sympy,AkademieOlympia/sympy,lidavidm/sympy,abloomston/sympy,VaibhavAgarwalVA/sympy,garvitr/sympy,yukoba/sympy,mafiya69/sympy,skirpichev/omg,Shaswat27/sympy,chaffra/sympy,cccfran/sympy,lindsayad/sympy,lindsayad/sympy,cswiercz/sympy,shikil/sympy,kaushik94/sympy,jbbskinny/sympy,madan96/sympy,ga7g08/sympy,Shaswat27/sympy,jerli/sympy,Curious72/sympy,atsao72/sympy,atsao72/sympy,cccfran/sympy,wyom/sympy,lidavidm/sympy,sunny94/temp,debugger22/sympy,kaushik94/sympy,hargup/sympy,jamesblunt/sympy,saurabhjn76/sympy,kevalds51/sympy,MridulS/sympy,atsao72/sympy,shikil/sympy,postvakje/sympy,grevutiu-gabriel/sympy,shipci/sympy,sahilshekhawat/sympy,ahhda/sympy,jbbskinny/sympy,asm666/sympy,jerli/sympy,Titan-C/sympy,shipci/sympy,sampadsaha5/sympy,skidzo/sympy,skidzo/sympy,lindsayad/sympy,shipci/sympy,rahuldan/sympy,hrashk/sympy,atreyv/sympy,vipulroxx/sympy,Curious72/sympy,asm666/sympy,saurabhjn76/sympy,kaichogami/sympy,sahilshekhawat/sympy,ga7g08/sympy,asm666/sympy,drufat/sympy,drufat/sympy,amitjamadagni/sympy,toolforger/sympy,srjoglekar246/sympy,debugger22/sympy,liangjiaxing/sympy,lidavidm/sympy,mafiya69/sympy,AunShiLord/sympy,abhiii5459/sympy,ahhda/sympy,abloomston/sympy,VaibhavAgarwalVA/sympy,souravsingh/sympy,jbbskinny/sympy,oliverlee/sympy,ChristinaZografou/sympy,liangjiaxing/sympy,wyom/sympy,rahuldan/sympy,bukzor/sympy,bukzor/sympy,liangjiaxing/sympy,skidzo/sympy,wanglongqi/sympy,Mitchkoens/sympy,chaffra/sympy,Titan-C/sympy,yukoba/sympy,pbrady/sympy