2) The following plot is a histogram of the cost of telephone call to Toronto Canada over a month long period. Use this histogram to answer the following question. Cost of Phone Calls 18 16 14 12 is" 10 g g 8 6 4 a _ 0 10 20 30 40 Cost One of the following values is the mean and one is the median of this data: 21.38 and 10.39. Which is the mean and which is the median