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Why should features in linear regression be checked for multicollinearity?

The coefficient in a regression model that represents the predicted value when all features equal zero is called the __.

An R² value of 0.75 means:

Why is accuracy sometimes a misleading metric for classification models?

The metric that balances precision and recall using their harmonic mean is called the __.

A model has high recall but low precision. What does this mean?

What does an AUC (Area Under the ROC Curve) value of 0.92 indicate?

Cindy has worked from home as a freelancer ever since she had a baby. Now that her baby, Hailey, is 15 months old, Cindy has accepted a full-time job offer. Every day when Cindy drops Hailey off at the day care, Hailey screams and cries for a couple of minutes. Which of the following terms best describes Hailey’s behavior?

Tamara, an African American, is born with a genetic disorder that causes her body’s red blood cells to become hook-shaped instead of being disk-shaped, impairing the normal oxygen-carrying capacity of the cells. The doctors explain to Tamara’s parents that this condition makes her resistant to malaria, however. Which of the following disorders is Tamara most likely suffering from?

Ramya is an 80-year-old woman who suffers from dementia. She attends therapy sessions in which the clinician uses photographs and video recordings to encourage discussions about Ramya’s past activities and experiences. The therapy sessions help reduce Ramya’s depressive symptoms and improve her self-acceptance. Based on this information, it can be inferred that the clinician uses_____ therapy.