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Data are collected on the relationship between the number of hours per week practicing a musical...

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Basic Math

Data are collected on the relationship between the number ofhours per week practicing a musical instrument and scores on a mathtest. The line of best fit is as follows: ? = 72.5 +2.8x.

What would you predict the score on a math test would be for astudent who practices a musical instrument for 1.2 hours a week?Round to one decimal place.

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3.6 Ratings (307 Votes)

? = 72.5 + 2.8x                                                                                                  

x = 1.2                                                                                                   

? = 72.5 + 2.8 * 1.2 = 75.86 = 75.9 (ans)
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