In class, we said that an action potential is an all or none process, and will only be produced if the voltage of the axon reaches the threshold.  What happens to the voltage of the axon when the threshold is NOT reached?

Light from the left visual field gets processed on which side of the visual cortex?

To remove a column named ‘redundant_column’ from a DataFrame my_df permanently, which of the following is the correct approach?

A patient arrives for an MRI examination. You discover they have an implanted medical devices. What is your first question to the patient?

Which of the following patients could legally give informed consent?

You are building a linear regression model to predict ‘sales’ based on ‘advertising_spend’. Which of the following correctly defines the feature (X) and target (y) for sklearn’s LinearRegression model?

True or False. An unconscious patient with skin staples can be scanned as long as ice is placed on the staples to absorb the heat.

A patient presents to the MRI department and notifies the technologist he has a heart valve. The patient informs you he had lost his heart valve card he carried but knows that it was a St. Jude valve. Which of the following is the best course of action the technologist should take?

True or False. A benefit of a local coil is increased signal to noise.

In supervised machine learning, what is the purpose of splitting a dataset into training and testing sets, as done with train_test_split?