The cash price of a bicycle is $219.95. It can be bought on hire purchase by making a deposit of $69.00 and 10 monthly instalments of $28.50 EACH.(i) What is the TOTAL hire purchase price of the bicycle? [3 marks] (ii) Calculate the difference between the total hire purchase price and the cash price. [1 mark]
(iii) Express your answer in (ii) above as a percentage of the cash price.[2 marks]

Researchers are conducting experiments to determine the role of alcohol in the development of depression. after the study is complete, they determine that the relative risk of developing depression is 1.55 with a 95 % ci of 1.2 -1.9. each group is then divided into nonsmokers and smokers. the relative risk for the nonsmokers is 1.12 with a 95% ci of 0.87-1.37. the relative risk for the smokers is 1.7 with a 95 % cl of 1.5-1.9. what type of bias may affect this study? a. procedure bias b. recall bias c. selection bias d. confounding e. lead-time bias