Choose 4 2 July 8, 2019 16 32 64 128 4 choose 2 formula 4 choose 23 4 choose 20 4 choose 21 4 choose 26 4 choose 24 8 choose 4 2 28 choose 4 29 choose 4 27 choose 4 4 choose 2 combination 4 choose 2 permutation 4 choose 2 meaning 4 choose 2 with replacement 4 choose 2 order matters
