A researcher collected data on the number of hours students studied per week and their corresponding scores on a standardized test. The following table summarizes their findings: Hours Studied Test Score 5 70 10 80 15 85 20 95 The researcher wants to establish a linear model to represent the relationship between the number of hours studied (x) and the test score (y). Based on the data, what is the equation of the best-fit line in slope-intercept form (i.e., $y = mx + b$) for this model?

Exam

Digital SAT

Section

Difficulty

Digital SAT Mathematics - Calculator Section

Finding the Best-Fit Line from Data

Very Hard Problem Solving And Data Analysis Data Interpretation

A researcher collected data on the number of hours students studied per week and their corresponding scores on a standardized test. The following table summarizes their findings:

Hours Studied	Test Score
5	70
10	80
15	85
20	95

The researcher wants to establish a linear model to represent the relationship between the number of hours studied (x) and the test score (y). Based on the data, what is the equation of the best-fit line in slope-intercept form (i.e., $y = mx + b$) for this model?

y = 1.25x + 65

y = 1.5x + 68

y = 1.6x + 60

y = 1.7x + 62

Hint

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