1.3. Construct a graphical representation for the cumulative percent frequency distribution for the random variable Selling price. Approximate the percentage of houses with a selling price above N$ 700 000. (15) 1.4 Use the frequency distribution constructed in 1.2 and calculate the following descriptive statistics measures: (25) a) Mean b) Mode c) Median d) Third quartile e) 60'}1 percentile f) Standard deviation 1.5 Compare your answers in 1.1 and 1.4. Explain why there is a difference. (10) Question 2 [20] Selling prices (N$ 1 0005) and Valuations (N$ 1 0003) of a random sample of ten twobedroom apartments sold during the last quarter of 2021 are shown in the table below: Selling price (N$ 1000) Valuation {M5 1000) 1 572 488 2 945 988 3 831 766 4 631 587 5 553 430 6 871 617 7 980 760 8 432 498 9 570 516 10 950 969 Required: a) Construct a scatter diagram for the data. b) Calculate and interpret the correlation coefficient