The previous questions asked Considering only one class (thus only one event, something that happened only once), if Bronwyn selected 12 random students of the total of 80 students that are in her class, and wanted to work out the probability that those 12 students will give her feedback after only one particular class.
The formula for the previous question would be
fraction numerator C subscript 75 comma 12 space space X space end subscript C subscript 25 comma 68 end subscript over denominator C subscript 100 comma 80 end subscript end fraction
