Galton Board from http://www.dartmouth.edu/~chance/

In this Galton Board experiment let LEFT stand for girl and RIGHT for boy. Change the delay to 1 microsecond, the number of pins to 1 and then the delay to around 200 microseconds.

(1) What do the totals in each of the 2 columns represent? What size of families are these? What do you notice about the middle column? Can you explain what you notice?

(2) Change the number of pins to 2.

What size of families are these? What do you notice about the middle column? Can you explain what you notice?

(3) Repeat for 3,4,5,6 pins.

(4) Which of the Families spreadsheet experiments does the Galton Board relate to? How? Does the Galton board demonstrate equally likely outcomes or not? Why?