I can't even complete the graph on this one ^

davidgba64  Dec 7, 2017

Here's just the first one:



80 members would buy one, the other, or both. That means  125 - 80 , or  45  members would not buy either type.


The rest of the numbers I found by subtracting the total from the other numbers in the row or column.


So the probability that a randomly selected gym member would buy passion fruit but not tropical grape is...


19 / 125   =   15.2%   ≈  15%

hectictar  Dec 7, 2017
edited by hectictar  Dec 8, 2017

Could you get us some better images for the last two?

helperid1839321  Dec 12, 2017

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