Betty claims that her dog can do simple addition problems. she showed her dog 8 different cards with simple addition problems, and the dog was able to tap his paw to indicate whether the answer was correct or incorrect. the dog correctly identified all 8 cards. john didn't believe betty's dog could do addition, so he set up a trial to test whether the dog was just guessing. he flipped 8 coins to see how many would land tails up. he did this 53 times, and the results are shown in the dot plot below: 3 dots on 1 6 dots on 2 9 dots on 3 12 dots on 4 9 dots on 5 8 dots on 6 5 dots on 7 1 dot on 8 based on these results, can betty’s dog add?