What do high and low values of kurtosis imply for the shape of a frequency distribution? Draw a diagram to illustrate your answer.
(a) Is the following data on incomes positively or negatively skewed? You do not need to calculate skewness, but you should justify your answer.
Data in thousands: 45, 43, 32, 23, 45, 43, 47, 39, 21, 90, 230.