28 Residential electrical consumption in March 1994 in Gainesville. Florida, had a mean of 780 and a standard deviation of 506 kilowatt-hours (Kwh). The minimum usage was 3 Kwh and the maximum was 9390 Kwh. (Data supplied by N. Todd Kamboot. Gainesville Regional Utilities.)

a) What shape do you expect this distribution to have? Why?

b) Do you expect thus distribution to have any outliers? Explain.