Question 1 For the following scores, find the 6, 1, 4, 2, 3, 4, 6, 6 (a) mean [3 marks] (b) median [3 marks] (c) variance [3 marks] (d) What is the concern to use mean as measure of central location? [3 marks] Question 2 Identify the following variables as qualitative or quantitative. (a) the ethnic origin of a job candidate. [3 marks] (b) the score from 0 to 100 in a final examination. [3 marks] (c) the fast-food establishment preferred by customers such as McDonalds or Burger King. [3 marks] (d) the mercury concentration in a sample of tuna. [3 marks] (e) the shelf life of a particular medicine in the pharmacy. [3 marks]