Homework Help: math

Posted by Kingbla on Wednesday, January 16, 2013 at 5:12pm.

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 - Ms. Sue, Wednesday, January 16, 2013 at 5:23pm
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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