3) The purpose of utilizing cash management software at an ATM is to accurately predict the ideal cash demand. To achieve this, a sample of 24 transactions was observed, and the software generated a report detailing the amount withdrawn (in A\\$) for each transaction as follows, see table \\( 3 a \\) : a) Determine the mean, mode, median and standard deviation of the transactions. Discuss your results. b) Complete the following grouped data table (Table 3b) and determine the mean and median from this grouped data. c) Discuss whether the mean and median from the ungrouped data (in part a)) are different from the mean and median calculated from the grouped data and explain why