Expert Chess and Average Chess Players Look at a Chess

question 70

Multiple Choice

Expert chess and average chess players look at a chess board for a few seconds and try to memorize the location of the chess pieces. Under what circumstances, if any, will the expert chess players show much better memory than the others?

• A) only if the pieces are arranged in a familiar pattern that occurs in well-played games.
• B) only if the pieces are arranged in a difficult, unfamiliar pattern.
• C) under any and all circumstances.
• D) under no circumstances.

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Definitions:

Variance

A statistical measurement of the dispersion between numbers in a data set, indicating how much the numbers differ from each other and from the mean.

Squared Deviation

The squared difference between each data point and the mean, used in statistical analysis to measure variance.

Arithmetic Average Return

The sum of returns in each period divided by the number of periods, often used to calculate the average return of an investment.

Multi-year Period

An extended timeframe that spans over multiple years, often used in the context of financial planning or contracts.