Selling prices (N$ 1 000s) and Valuations (NS 1 000s) of a random sample of ten two-bedroom apartments sold during the last quarter of 2021 are shown in the table below: Selling price (N$ 1000) Valuation (N$ 1000) 572 488 2 945 988 831 766 4 631 587 5 553 430 871 617 7 980 760 8 482 498 9 570 516 10 950 969 Required: a) Construct a scatter diagram for the data. b) Calculate and interpret the correlation coefficient