Question: Analyze how changes in system architecture can affect both bias and variance simultaneously, citing the difficulties associated with this approach as described in the source.

Sample answer: According to the source, developers can simultaneously reduce both bias and variance by making major changes to the system architecture or selecting a model architecture that is well suited for the task. However, this approach is challenging because these methods and architectures are harder to identify, select, and implement compared to standard techniques.

Key points:

• Major system architecture changes can reduce bias and variance simultaneously.
• Selecting a model architecture well suited for the task is a key method.
• These methods tend to be harder to identify and implement.
• Selecting such an architecture can be difficult.

Rubric: The response must explain that major system architecture changes or selecting a task-suited architecture can reduce both bias and variance simultaneously, and explain that doing so is difficult or hard to identify and implement.