A Scaling Factor of 1000 in the Hounsfield Scale (H

question 32

Multiple Choice

A scaling factor of 1000 in the Hounsfield scale (H scale) for K results in a:

• A) contrast scale of 0.2% per CT number.
• B) contrast scale of 0.1 % per CT number.
• C) contrast scale of 0.5% per CT number.
• D) contrast scale of 0.8% per CT number.

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Definitions:

Market Risk Premium

The extra return expected by investors for taking on the risk of investing in the stock market over a risk-free rate.

Security Market Line

A line representing the relationship between the expected return of a market security and its risk, as measured by beta.

Systematic Risk

The collective risk for all investments in a market or a specific part of the market that cannot be offset through diversification.

Unsystematic Risk

The danger linked to a certain company or sector that can be reduced by spreading investments across a varied portfolio.