The Doppler Effect Is Caused by a Difference in the Depth

question 3

True/False

The Doppler effect is caused by a difference in the depth of two moving objects.

---

Definitions:

Standard Deviation

Square root of the variance.

Alpha

In investing, alpha is a measure of the performance of an investment relative to a suitable benchmark index, indicating excess or deficient return.

Security

A financial instrument representing ownership in a publicly-traded corporation (stock), a creditor relationship with a government or corporation (bond), or rights to ownership as represented by an option.

Rate of Return

The profit or deficit from an investment during a designated time frame, represented as a fraction of the investment's initial value.