Which of the Following Is a Key Feature of an Experimental

question 53

Multiple Choice

Which of the following is a key feature of an experimental study?

• A)Controls for cohort effects
• B)Nonrandom assignment
• C)Absence of a control group
• D)An independent variable

---

Definitions:

Defects

Imperfections or faults in a product or process that deviate from desired performance or specification.

Normal Distribution

This denotes a probability distribution with symmetry at the mean, proving that nearer-to-mean data points occur more regularly than those farther away.

Mean

The mean of a collection of numbers, found by dividing their total sum by the quantity of numbers in the set.

μ

The symbol commonly used to represent the mean or average of a population in statistics.