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Using the exponential regression model, which is the best prediction of the wavelength of the key that is 8 above the A above middle C? 49.31 cm 49.44 cm 49.73 cm 49.78 cm

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danacoots1

Answer: B is correct

Step-by-step explanation:

The best prediction of the wavelength of the key that is 8 above the A above middle C is 49.78cm.

What is exponential regression model?

Exponential regression is used to model situations in which growth begins slowly and then accelerates rapidly without bound, or where decay begins rapidly and then slows down to get closer and closer to zero. We use the command “ExpReg” on a graphing utility to fit an exponential function to a set of data points. This returns an equation of the form y=abx.

  • b must be non-negative.
  • When b > 1, we have an exponential growth model.
  • When 0 < b < 1, we have an exponential decay model.

Hence, the wavelength of the key that is 8 above the A above middle C is 49.78cm.

Learn more about regression model:

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