Mathematics, 17.11.2020 23:10, mckinley2006

Kai, a seventh grader, wants to determine the average number of times the families in his neighborhood visit the pool during the summer. He samples the families of four of his classmates. Which improvements could Kai make to his sample to increase the validity of the results? Select three choices.

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Kai, a seventh grader, wants to determine the average number of times the families in his neighborho...