Question the-st
The sterplot shows the relationship between two variables, and . A line of best fit is also shown.
- The sterplot has 5 data points.
- The data points are in a linear pattern trending down from left to right.
- A line of best fit is shown:
- The line of best fit slants down from left to right.
- The line of best fit passes through the following approximate coordinates:
- (0 comma 14.1)
- (12.7 comma 0)
Which of the following is closest to the slope of this line of best fit?
The sterplot shows the relationship between two variables, x and y . A line of best
Hard-difficulty · SAT Math · Two-Variable Data & Models — Line of best fit. Read the question above, select your answer, and check the full explanation below to understand exactly why the correct choice works.
Answer explanation
Choice B is correct. A line in the xy-plane that passes through points and has a slope of . The line of best fit shown passes approximately through the points and . It follows that the slope of this line of best fit is approximately , or . Of the given choices, is closest to .
Choice A is incorrect and may result from conceptual or calculation errors.
Choice C is incorrect and may result from conceptual or calculation errors.
Choice D is incorrect and may result from conceptual or calculation errors.
More Two-Variable Data & Models practice questions
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- The sterplot shows the relationship between two variables, x and y . The sterplot
- The sterplot shows the relationship between two variables, x and y . A line
- The sterplot above shows the numbers of grams of both total protein and total
- The sterplot above shows data for ten charities along with the line of best
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