Final answer:
The duration of learning mode for newly deployed computers in an educational context depends on the application and is not set by default. It varies based on the educational software or system's parameters.
Step-by-step explanation:
The question regarding the duration of learning mode for newly deployed computers does not seem to correspond with the example provided about conducting an experiment with participants learning algebra. Typically, learning mode as it relates to computers often refers to a security or operational feature within an endpoint protection platform, or it may concern an AI/machine learning system during its initial training phase. However, based on the experiment details provided, the focus appears to be on the use of technology in an educational context and measuring the effectiveness of learning algebra through either a computer program or in-person teaching. If we're referring to such an educational technology setup, the duration for which a computer might be in a sort of 'learning mode' would usually be dictated by the parameters of the educational software or system in use. There's no default time period as it varies greatly depending on the application and the context in which it's deployed.