My IB Math Studies kids are working with expected value. I wanted to build a simulation to explore what happens to the average value as the number of trials increased and how this approaches expected value. I am stuck with figuring out how to sum a column of values. I have attached my feeble attempt-- just a spinner and a table for the results and am I stuck! Looked at the documentation but I didn't find anything that clicked for me. As always, thanks for the help.