From 1960 to 2012, the Number of Employed Social Workers

question 3

Multiple Choice

From 1960 to 2012, the number of employed social workers grew by _____.

• A) less than 50%
• B) ​about 100%
• C) less than ​10%
• D) ​over 600%

---

Definitions:

Confidence

A measure of the reliability or certainty in statistical results, often expressed as a confidence interval or level.

Aptitude Tests

Assessments designed to measure a person's ability to acquire skills or knowledge, often used in educational and professional settings.

Population Means

The average of all the values in a population, representing the central tendency of the population data.

Multiple Regression

A method in statistics that employs multiple predictor variables to forecast the value of a dependent variable.