can use even or odd. when a parity bit added to a 4-bit dataword, it gives a "5"-bit codeword (not 4-bit codeword)

7. Consider all possible 4-bit datawords (There will be 16). For each dataword, find the single bit parity to form the 4-bit codeword. What is the Hamming distance for the code set thus obtained? How many bit errors can this codeset detect? What is the number of legal and illegal codewords? (2 points)