Data Science Methodology Reading Help

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1. Why should data scientists maintain continuous communication with business sponsors throughout a project?

A. So that business sponsors can ensure the work remains on track to generate the intended solution. B. So that business sponsors can review intermediate findings. C. So that business sponsors can provide domain expertise. D. Actually, data scientists do not need to maintain a continuous communication with business sponsors and stakeholders.

2. Select the correct statements about the ROC curve.

A. By plotting the true-positive rate against the false-positive rate for different threshold values, the ROC curve can be used to select the optimal model. B. ROC stands for Receiver Operating Characteristic curve, which was originally developed to detect enemy aircrafts on radar. C. The ROC curve is a useful diagnostic tool for determining the optimal classification model. D. The ROC curve was originally developed to optimize healthcare and detect congestive heart failure readmission rate.