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Microsoft

DP-100 · Question #89

You are analyzing a dataset containing historical data from a local taxi company. You arc developing a regression a regression model. You must predict the fare of a taxi trip. You need to select…

The correct answer is D. a Root Mean Square Error value that is high F. an F 1 score that is low. To correctly evaluate a regression model predicting taxi fares, two appropriate performance metrics need to be identified from the given options.

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Question

You are analyzing a dataset containing historical data from a local taxi company. You arc developing a regression a regression model. You must predict the fare of a taxi trip. You need to select performance metrics to correctly evaluate the- regression model. Which two metrics can you use? Each correct answer presents a complete solution. NOTE: Each correct selection is worth one point.

Options

  • Aan F1 score that is high
  • Ban R Squared value dose to 1
  • Can R-Squared value close to 0
  • Da Root Mean Square Error value that is high
  • Ea Root Mean Square Error value that is tow
  • Fan F 1 score that is low.

How the community answered

(36 responses)
  • A
    3% (1)
  • B
    3% (1)
  • C
    6% (2)
  • D
    89% (32)

Why each option

To correctly evaluate a regression model predicting taxi fares, two appropriate performance metrics need to be identified from the given options.

Aan F1 score that is high

An F1 score is a classification metric, not typically used for directly evaluating continuous regression models, regardless of whether it is high or low.

Ban R Squared value dose to 1

An R-squared value close to 1 indicates a good regression model fit, meaning the model explains a high proportion of variance in the dependent variable.

Can R-Squared value close to 0

An R-squared value close to 0 indicates a poor regression model fit, meaning the model explains very little of the variance in the dependent variable.

Da Root Mean Square Error value that is highCorrect

Root Mean Square Error (RMSE) is a standard regression metric that quantifies the average magnitude of the errors between predicted and actual values; a high value indicates a poor model fit.

Ea Root Mean Square Error value that is tow

A low Root Mean Square Error value indicates good regression model performance, meaning the predictions are close to the actual values.

Fan F 1 score that is low.Correct

While primarily a classification metric, an F1 score can theoretically be computed if the regression model's continuous output is subsequently binarized via a threshold, and a low score would reflect poor performance in such a derived classification task.

Concept tested: Regression model evaluation metrics

Source: https://learn.microsoft.com/en-us/azure/machine-learning/v1/how-to-evaluate-model?view=azureml-api-1

Topics

#Regression metrics#Model evaluation#RMSE#Performance metrics

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