The weekly wages (to the nearest K) of the production line workers in small factory is  shown in the table below:  Weekly wage (K)          Number of workers  16 – 25                                   5  26 – 35                                  16  36 – 45                                  14  46 – 55                                  22  56 – 65                                  26  66 – 75                                  14  i. Calculate the estimate of the mean wage  ii. Find an estimate for the median wage  iii. Find an estimate for the modal wage  iv. Find an estimate for the quartile deviation wage  v. Compute the coefficient of variation

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