Estimate by Rounding the Addends to the Nearest Ten $134.19 + 289.47$

question 73

Multiple Choice

Estimate by rounding the addends to the nearest ten: $134.19 + 289.47$

• A) 420
• B) 430
• C) 410
• D) 440

---

Definitions:

Response Rate

The frequency or speed of responses to a stimulus or query, often used in surveys, research, and experiments.

Extinction

The process of eliminating a behavior by withholding reinforcement.

Successive Approximation

An explanation for the acquisition of complex behavior. Behavior such as learning to speak will be reinforced only as it comes to approximate or approach the final desired behavior.

Variable-Ratio Reinforcement

A schedule of reinforcement where a response is rewarded after an unpredictable number of responses, leading to high and steady response rates.