Solve. -Three Out of 10 Adults in a Certain City Buy

question 165

Multiple Choice

Solve.
-Three out of 10 adults in a certain city buy their drugs at large drug stores. If this city has 138,000 adults, how many of these adults would you expect to buy their drugs at large drug stores?

• A) 46,000 adults
• B) 41,400 adults
• C) 4600 adults
• D) 4140 adults

---

Definitions:

Standard Deviation

A quantification of how spread out or dispersed the values in a collection are, measuring the deviation of data points from their average.

Aptitude Test

An assessment designed to measure a candidate's ability to perform or learn a particular skill or set of skills.

Unknown Mean

A statistical term referring to the average value of a population or dataset that has not been determined.

Variance

A measure of the dispersion of a set of data points around their mean value.