my gut says there’s already another card that tests the PPV formula… maybe not? - either way I think the cloze definitely should be text instead of a picture
let’s just merge it with another PPV card these will eventually need to go. Someone send me nid #s to merge with please
Probably should be merged with 1485917635882 and 1485736721660 (testing over prevalence and PPV), but I also cannot find a card that is just PPV formula to save my life
working on it 
not going to merge with those other 2 just going to modify this