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Measures of Center and Variability: Mastery Test
3
Sara kept track of the number of hours she spent practicing piano each week for several weeks. She spent 4, 6, 7, 5, and 8 hours.
What is the mean number of hours that Sara spent practicing piano each week?
OA. 30 hours
O B. 6 hours
O c. 5 hours
OD. 4 hours
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