%0 Journal Article %T Quasiprobability and Probability Distributions for Spin 1/2 States %A M. O. Terra Cunha %A V. I. Man'ko %A M. O. Scully %J Physics %D 2001 %I arXiv %R 10.1023/A:1012373419313 %X We develop a Radon like transformation, in which $P$ quasiprobability distribution for spin 1/2 states is written in terms the tomographic probability distribution $w$. %U http://arxiv.org/abs/quant-ph/0102038v1