Question: Here are 8 letters: A, T, Y, P, N, B, G, K (please show steps so I can understand) How many COMBINATIONS can you make

Here are 8 letters:A, T, Y, P, N, B, G, K(please show steps so I can understand)

  1. How many COMBINATIONS can you make using all 8 letters ? ______; PERMUTATIONS? _______
  2. How many COMBINATIONS can you make using 6 of the 8 letters ? _______: PERMUTATIONS? ______

Of 30 patients in a waiting room, 60% have distemper, 30% have the rabies, and 10% have both.

  1. What is the probability that a patient picked at random has distemper or rabies?

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