(a(i))[2]
Fill in the table.
(a(ii))[2]
Finish the pie chart.
(b(i))[1]
State the probability that a marble chosen at random from bag A is black.
(b(ii))[2]
Decide whether Toby is correct, and justify your answer.
(b(iii))[2]
Work out the smallest number of black marbles and white marbles he adds to bag B.