People Are Especially Good at Quickly Detecting Facial Expressions of

question 67

Multiple Choice

People are especially good at quickly detecting facial expressions of

• A) anger.
• B) surprise.
• C) happiness.
• D) boredom.

---

Definitions:

Tchebysheff's Theorem

A statistical rule stating that for any dataset, regardless of distribution, a certain minimum percentage of values must lie within a specified number of standard deviations from the mean.

Population Mean

A calculation of the central value among all data points in a population.

Sample Mean

The average of a set of numerical values taken from a sample.

Grouped Data

Data that has been organized into groups or categories, often to simplify analysis and identify patterns within the data set.