for what does a shopkeeper buy an item for making a profit of 20 percentage by selling the item per Rs 4800? calculate​

The data set gives the number of bottles filled by each of the workers in a bottling plant in one day. {36, 18, 16, 28, 68, 35, 37, 66, 38, 40, 41, 44, 72, 29} the best measure of center for this data set is the , and its value expressed up to one decimal place is