THE NEXT QUESTIONS ARE BASED ON THE FOLLOWING

question 251

Multiple Choice

THE NEXT QUESTIONS ARE BASED ON THE FOLLOWING:
Suppose X and Y are two random variables with E(X) = 1.50,E(Y) = 0.55,E(XY) = 0.80,Var(X) = 0.25,and Var(Y) = 0.2475.
-What is the value of Var(2X - 3Y) ?

• A)-0.2425
• B)3.2275
• C)3.0775
• D)3.5275

---

Definitions:

Wild Salmon

A type of salmon that is born and spends its life in natural bodies of water, as opposed to being raised in captivity or fish farms.

Threat of Extinction

The threat of extinction refers to the risk of a species becoming extinct, meaning that no surviving members are left, often due to human activities, environmental changes, or other factors.

Goldfish Populations

The total number of goldfish within a specific habitat or ecosystem, important for studying biodiversity and ecosystem health.

Excludable

Describes a good or service for which it is possible to prevent non-paying consumers from access, through mechanisms like price or physical restrictions.