Mendel [Men65] crossed pea plants that were heterozygotes for green pod/yellow pod. If this is inherited as a simple Mendelian trait, with green dominant over yellow, the expected ratio in the offspring is 3 green: 1 yellow. He observed 428 Green and 152 yellow. What is the probability of being this close to what the model predicts? Do you have have evidence to suggest that Mendel's data are too good? [Note: This is not quite the same thing as the question of a binomial test.]