Please answer with all working and formula clearly

Question 2 (7 marks) You have been given a sample data set related to sales revenue and advertising expenditure in Dian packaging. Sales Revenue ($ 000) Advertising expenditure ($ 000) 35 7 37 8 45 10 47 12 51 12 183 55 11 60 15 72 16 75 18 74 20Use the above data to answer the questions given below; i. Calculate mean of sales revenue and advertising expenditure (2 marks) ANSWER i): ii. Calculate Standard deviation of sales revenue and adverting expenditure (2 marks) ANSWER ii): 183 iii. Calculate correlation coefficient between above two variables and interpret the meaning (3 marks) ANSWER iii): 234%