3.4 Shape of distributions

An air conditioner iced up over the weekend and flooded the floor. The in floor electrical outlets presented a potential shock hazard, so MS 150 Statistics moved to A101. A symmetric heap was the predicted shape.

Kozel measures Mary Bella

Tape measures were used, with one inch under the foot, and then an inch added to measurement.

Maireen working on getting measured


Data was then recorded on the board by the students.

Data on the board. The data on the board was entered into a spreadsheet.




A lecture on the possible shapes followed.

For the uniform shape a single die was simulated with 100 rolls. This was extended to six die and 500 rolls, the sum of which was nicely normal once the buckets were set to integer values rather than fractional boundaries. 

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