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  • one year ago

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:

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  1. itsmichelle29
    • one year ago
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    A dot plot with values of 1, 2 3, 4, 5, 6, 7, 8 corresponding to frequencies of 3, 5, 8, 11, 8, 7, 5, and 1 respectively. Based on these results, can Betty’s dog add? Yes, the chances of getting 8 correct by guessing are very low No, the chances of getting 8 correct by guessing are very low Yes, the dog is likely to get them all correct No, dogs can't add

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