ction A (39 marks) The following Venn diagram shows the events A and B, where P(A) = 0.6. The values in the diagram are probabilities. A B 0.2 0.1 (a) Find m. [2] (b) Find n. [2] (c) Find P(B'). [2]2. There are 15 items in a data set. The sum of the items is 300. (a) Find the mean. [2] The variance of this data set is 9. Each value in the set is multiplied by -2. (b) (i) Write down the value of the new mean. (ii) Find the value of the new variance. (iii) Hence, write down the value of the new standard deviation. [4]