Find the Standard Deviation of the Binomial Random Variable

question 6

Multiple Choice

Find the standard deviation of the binomial random variable.
-A die is rolled 17 times and the number of twos that come up is tallied. If this experiment is repeated many times, find the standard deviation for the random variable X, the number of twos.

• A)1.543
• B)2.06
• C)1.537
• D)1.491

---

Definitions:

Operating Expenses

Costs associated with the day-to-day operations of a business, including rent, utilities, and payroll.

Sales

the exchange of goods or services for money, representing a key activity for businesses to generate revenue.

Basket Of Goods

This term refers to a fixed set of consumer products and services valued on a regular basis for the purpose of tracking inflation in an economy.

CPI

The Consumer Price Index, which measures the average change over time in the prices paid by urban consumers for a market basket of consumer goods and services.