Solve the Problem. -How Many 10-Digit Telephone Numbers (Area Code + Number) Are

question 214

Multiple Choice

Solve the problem.
-How many 10-digit telephone numbers (area code + number) are possible if the first digit cannot be zero, the first three digits cannot be 800 or 900, and the number must end in 0000?

• A) 900,000
• B) 899,000
• C) 898,000
• D) 654,642

---

Definitions:

Cocktail Party Effect

The ability of individuals to focus on a single conversation in a noisy environment, ignoring other conversations.

Dichotic Listening Phenomenon

a cognitive experiment where two different auditory stimuli are presented to each ear simultaneously, used to study selective attention and the brain’s processing of information.

Dichotic Listening Task

A psychological test used to investigate selective attention and the processing of different information presented to each ear simultaneously.

Kahneman's Capacity Model

A cognitive theory proposed by Daniel Kahneman that outlines the limited capacity of the human brain to engage in multiple tasks, emphasizing the allocation of cognitive resources between competing demands.