A Researcher Has Calculated a Variance of 9 for a Data

question 20

Multiple Choice

A researcher has calculated a variance of 9 for a data set.What is this data set's standard deviation?

• A) 1
• B) 3
• C) 4
• D) 5

---

Definitions:

Linear Perspective

Linear perspective is an artistic technique that creates the illusion of depth and distance on a flat surface by converging parallel lines to a single point on the horizon.

Stroboscopic Movement

The illusion of motion created when a series of static images is presented in rapid succession.

Linear Perspective

A depth cue that refers to the tendency for parallel lines to appear to converge as they recede into the distance.

Briefly Flashed

A term describing something shown or displayed for a very short period of time.