The probability that a sunflower seed will germinate is 0.9
Alan is going to plant 50 sunflower seeds.
Show that an estimate for the number of seeds that will germinate is 45.
Hence, work out an estimate for the number of seeds that will not germinate.
324 exam-style questions on CCEA GCSE Maths Probability. Each one has a worked solution and a mark scheme showing where the marks go.