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Rachel is curious about the number of pets that people own. She surveyed her 20 classmates, asking them exactly how many pets they own. Rachel's data is shown below:

Number of Pets 0 Pets 1 Pet 2 Pets 3 Pets
Number of Classmates 9 6 1 4

What is the mean number of pets owned by Rachel's classmates?

  • math - ,

    9 * 0 = 0
    6 * 1 = 6
    2 * 1 = 4
    3 * 4 = 12

    Total number of pets = 22

    Total number of classmates = 20

    22/20 = 1.1 mean number of pets

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