The owner of a pet store wants to investigate the average amount spent per buying customer. A sample of recent customer sales was taken, and produced the following data: 80, 98, 10, 5, 87, 98 in $

a) Calculate the mean, median and mode of the data.

b)Using your answers from part a), what is the shape of the distribution of the data set? Briefly explain.

c) Calculate and interpret the coefficient of variation for the data. Show basic workings.