A Martingale Has the Property That

question 60

Multiple Choice

A martingale has the property that

• A) it is inherently unpredictable.
• B) the best prediction of its value tomorrow is its value today.
• C) the best prediction of its future growth rate is its current growth rate.
• D) the best prediction of its value tomorrow can be computed by looking at its past behavior.
• E) the best prediction of its value tomorrow can be computed by looking at the past two periods.

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Definitions:

Sampling Error

The error that occurs due to differences between the sample selected for a study and the overall population, which can affect the generalizability of results.

Sampling Judgment

A method of selecting participants or subjects for a study based on the researcher's knowledge and judgement.

Pilot A Survey

A preliminary study conducted to evaluate the feasibility, time, cost, risk, and adverse effects of a research project.

Internet Sampling Frames

Online lists or databases from which a researcher can select participants for a study, ensuring the sample represents a larger population.