13. A random sample of fifty claim amounts (55} arising in a particular section of an insurance company's business are displayed below in a stern and leaf plot: 1 5 14678 16 0233368889 17 0000001233457888 18 3455779 19 0257 20 0 21 3 22 07 23 24 25 3 26 27 3 28 8 29 30 31 2 Stem unit = 100 Leaf unit =10 The sum of the fty amounts [before rounding} is $92780. Calculate the Mean and Median claim amounts. [4 marks]