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Statistics Flashcards: Evaluate Model Fit With Residuals

Study Evaluate Model Fit With Residuals in Statistics with focused flashcards that help you recognize the idea, recall the key rule, and apply it in practice-style prompts.

QUESTION

Identify the residual if y=7y=7 and y^=10\hat{y}=10.

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ANSWER

−3-3. Calculate 7−10=−37-10=-3 since residual equals observed minus predicted.

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Statistics: Two-Variable Data

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This deck focuses on Evaluate Model Fit With Residuals, giving you a quick way to review the definitions, rules, and examples that matter most for Statistics.

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Practice questions

1 of 41Practice questions for this set
A meteorologist fit the linear model y^=12+0.6x\hat{y}=12+0.6x to predict afternoon temperature (y, in °C) from morning temperature (x, in °C). The residuals show this pattern: For small x values, residuals are mostly positive; for medium x values, residuals are near 0; for large x values, residuals are mostly negative. What does the residual pattern suggest about the model choice?
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