The Covariance

question 88

Multiple Choice

The covariance

• A)must be between -1 and +1.
• B)must be positive.
• C)can be positive or negative.
• D)must be less than +1.

---

Definitions:

Oilskin Boots

Waterproof boots made from cloth treated with oil, especially useful in wet environments.

Arthur Conan Doyle

A British writer best known for creating the detective Sherlock Holmes, one of the most famous and enduring characters in crime fiction.

Ship's Log Book

A record book maintained by the ship's captain or other officers to document every detail about a voyage, including weather conditions, navigational course, and events at sea.

Oilskin Boots

Waterproof boots made from canvas treated with oil, designed to keep feet dry in wet conditions.