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[DOCX File]Practice: Math 8 Test # 1
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& Line of Best Fit – Practice . 9. 2A. The scatter plot shows the weights . y. of an infant from birth through . x. months. At what age did the infant weigh 11 pounds? What was the infant’s weight at birth? Draw a line that you think best approximates the points. Write an equation for your line.

[DOC File]Math 10 PLUS
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When constructing the line of best fit, it is also important to keep, approximately, an equal number of points above and below the line. Example 3: For each of the following graphs, choose the line of best fit for each scatter plot and justify your choices. Example 4: You decide to save all the pennies you accumulate in the span of 12 weeks.

[DOC File]Math 2, Draw Scatter Plots and Best-Fitting Lines
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Math 75, Mod3 Scatter Plots and Best-Fitting Lines Name: _____ Worksheet Review (FINISH FOR HOMEWORK) SCATTER PLOTS A scatter plot is a graph of a set of data pairs (x, y).If y tends to increase as x increases, then the data have a positive correlation.If y tends to decrease as x increases, then the data have a negative correlation.

[DOC File]Quiz I
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5. Based on the data, which best represents the amount of money the carpenter . would earn from a job that took 5 days to complete? A $2500. B $500. C $1250. D $200. According to the graph above, the relationship between the carpenter’s earnings and the amount of time he spent on jobs is: A a positive correlation. B a negative correlation

[DOC File]Teacher Guide
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Least-Squares Best Fit Lines. MAFS.912.S-ID.2.6.a: Fit a function to the data; use functions fitted to data to solve problems in the context of the data. MAFS.912.S-ID.2.6.b: Informally assess the fit of a function by plotting and analyzing residuals. MAFS.912.S-ID.2.6.c: Fit a linear function for a scatter plot that suggests a linear association.

[DOC File]Name:_____________________
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Next go to the CALC (2nd TRACE) to find the intersection (5:) of the two lines. Hit ENTER 3 times. Write the answer below. NOTE: The other way to find answers for #3 and 4 is to plug the value given. into its corresponding variable and solve the equation by hand. 5) Now draw your scatter plot. Make. sure to include the best fit line.

[DOCX File]Answers
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The graph below shows a line of best fit for data collected on the number of vacation days accrued by employees at different companies. The equation for the line of best fit is shown below. Based on the line of best fit, if an employee works at a company for six years, …

[DOCX File]EduGAINs Home
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Answers for question 6 will vary depending on the line of best fit. Generally, the line should follow the trend, have approximately the same number of points above and below it and go through as many of the data points as possible. Extrapolated and interpolated answers should be approximately the same as those on the answer sheet.

[DOC File]Line of Best Fit Worksheet - Periodically Inspired
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Draw a best fit line. Independent variable _____ Dependent variable _____ What tip amount would you expect if you paid $10.50 for dinner? Tip expected _____ As the amount you spend on dinner increases, what happens to the tip? The tip will _____ The table below gives the number of hours spent studying for a science exam and the final exam grade ...

SCATTERPLOTS AND LINES OF BEST FIT
Adjust the window to fit the data. Turn on the scatterplot function. View the graph. How does the calculator’s graph of the scatterplot compare to your graph in #1? Determine the regression equation for the line of best fit. Store the equation in the Y= Editor of the calculator. (This is only an example screen.)

Lines of best fit answers