# Grade 7 » Statistics & Probability » Investigate chance processes and develop, use, and evaluate probability models. » 8 » c

Print this pageDesign and use a simulation to generate frequencies for compound events. *For example, use random digits as a simulation tool to approximate the answer to the question: If 40% of donors have type A blood, what is the probability that it will take at least 4 donors to find one with type A blood?*