The graphic shows three columns across the top labelled (from left to right) ‘1st coin’, ‘2nd coin’ and ‘Outcome’. Under the ‘1st coin’ column are the letters H (heads) and T (tails). Two lines go from ‘H’ under the ‘1st coin’ column to ‘H’ and ‘T’ under the ‘2nd coin’ column. Another two lines go from ‘T’ in the ‘1st coin’ column to another ‘H’ and ‘T’ in the ‘2nd coin’ column. The ‘Outcome’ column displays ‘?(a)’, under is ‘HT’, under this is ‘?(b)’ and under this is ‘?(c)’.