a Calculate the mean of 1, 2, 3, 4, 5 and 6. Using your answer to a: b Write down the mean of: i 2, 4, 6, 8, 10 and 12, ii 10, 20, 30, 40, 50 and 60, iii 12, 22, 32, 42, 52 and 62. 4. The coded mean price of televisions in a shop was worked out. Using the coding y the mean price was 1.