The number of daily visitors to the famous 'Bondi Beach' in Sydney, Australia, and the daily temperature on those days, were recorded for eight days in February. The table below shows this data and has been ordered in ascending order by temperature. Temperature, °C (x) 20 21 22 23 24 25 27 28 Number of visitors (y) 405 448 481 527 565 601 688 729 The number of visitors to Bondi Beach varies linearly with the temperature. (a) Find (i) Pearson's product-moment correlation coefficient, r; (ii) the equation of the regression line y on x. (b) Use the equation of the regression line y on x to estimate the number of visitors to Bondi Beach during a day the temperature is 26°C.

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