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Interpreting Sinusoidal Residual Patterns
Worksheet
Grade Level
Algebra II
ALG2.207 Interpreting Sinusoidal Residual Patterns
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A student says, 'The residuals alternate signs, so the model is good.' Which response is most accurate?
A
The student is always correct because good residuals must alternate signs.
B
Alternating signs are not enough; the residuals must be checked for a repeated pattern.
C
The student is correct only if every positive residual equals 1.
D
Alternating signs prove the model should be exponential.
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