In the USA, blacks are 18% more falsely convicted for murder than whites

These numbers are for murder convictions.

Proof :

F=False, C=Convicted, W=Whites, B=Blacks

(W1) FCW/FC=36%, (W2) CW/C=45%

(B1) FCB/FC=50%, (B2) CB/C=53%

(B1/B2)/(W1/W2) is, after literal calculation, (FCB/CB)/(FCW/CW), it's the ratio between the rate of false convictions for blacks and the same for whites : (36/45)/(50/53)=1,18.

So, the blacks have 18% more probability to be falsely convicted for murder than whites.

Source :
https://edition.cnn.com/2017/03/07/politics/blacks-wrongful-convictions-study/index.html