Can you help me with these qs

Question 4 a) i) For the autocorrelation word 1011 what is the value of R(2)? ii) For autocorrelation, what is the definition of D, the Index of Discrimination? iii) With respect to codewords, state what is meant by Hamming Distance. In the figure 4a below the parity bit is shown in red: Decimal value Data Block Parity bit Code word 0000 00000 0001 00011 0010 00101 0011 00110 0100 01001 0101 01010 0110 01100 0111 01111 1000 10001 1001 10010 10 1010 10100 11 1011 10111 12 1100 11000 13 1101 11011 11101 14 1110 11110 1111 15 Figure 4a Determine the Hamming distance for these codewords. 19 marks] OOOOOOOO