Number of Horses ​

question 154

Short Answer

Number of Horses ​
The random variable X represents the number of horses per family in a rural area in Iowa,with the probability distribution: p(x)= 0.05x,x = 2,3,4,5,or 6. ​ ​
-{Number of Horses Narrative} Find the variance and standard deviation of X.

---

Definitions:

Debit Card

A payment card that deducts money directly from a consumer’s checking account to pay for a purchase, unlike credit cards that borrow funds that need to be repaid.

Credit Card

A payment card issued to users as a method of payment allowing the cardholder to pay for goods and services based on the holder's promise to pay for them later.

Monetary Policy

The process by which a central bank or monetary authority manages the money supply and interest rates to influence economic activity.

Federal Reserve Banks

Federal Reserve Banks are part of the central banking system in the United States, involved in regulating the nation's financial institutions and implementing monetary policy.