The term biserial correlation coefficient is identified in base64 scheme by the sequence YmlzZXJpYWwgY29ycmVsYXRpb24gY29lZmZpY2llbnQ=, while the MD5 signature is equal to 4e9131c00812a768f5704b0946dfae2b. The ASCII encoding of biserial correlation coefficient in hexadecimal notation is 626973657269616c20636f7272656c6174696f6e20636f656666696369656e74.