The Spectral Luminosity Class of the Star Spica Is B1

question 5

Multiple Choice

The spectral luminosity class of the star Spica is B1 V,and that of the starƮ Ceti is G8 V.From this information,we know thatƮ Ceti is _____ Spica.

• A) cooler but has the same luminosity as
• B) cooler and has a lower luminosity than
• C) hotter but has the same luminosity as
• D) hotter and has a lower luminosity than

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Definitions:

Time Diversification

An investment strategy that spreads exposure across different periods to reduce risk associated with market volatility.

Standard Deviation

Standard deviation is a statistical measure that quantifies the amount of variation or dispersion of a set of data values.

Uncertainty

The lack of certainty in the outcome of an event, often quantifiable and factored into models and decision-making processes in finance.

Correlation Coefficient

An analytical value assessing the magnitude and pathway of a linear linkage between a pair of variables.