I need the step by step working. Thank you

Question 3 a) A study is conducted on the number of vehicles on the road during festive season and the number of road accidents for 6 days consecutively. n= 6 Number of vehicles on the road ('00) 57 65 83 63 81 74 Number of road accidents 8 20 25 14 26 23 (i) Calculate the product moment correlation coefficient. Hence, interpret your answer. (5 marks) (ii) Assuming that a linear regression model is appropriate, find the equation of the least squares regression line of y on x in the form of D = a + bx. Hence interpret the value of the regression coefficient "b" (6 marks) (iii) Estimate the number of accidents when the number of vehicles on the road is 5000. Comment on the accuracy of the estimate. (2 marks)