Given an array of single shot results estimate the probability distribution over all bitstrings.

Parameters:results (np.array) – A 2d array where the outer axis iterates over shots and the inner axis over bits.
Returns:An array with as many axes as there are qubit and normalized such that it sums to one. p[i,j,...,k] gives the estimated probability of bitstring ij...k.
Return type:np.array