Calculate (0

question 24

Multiple Choice

Calculate (0.82 + 0.042) × (4.49 × 10³) ,keeping only significant figures.

• A) 3870.8
• B) 3870
• C) 3879
• D) 3900

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Definitions:

Independent Variables

Variables in an experiment that are manipulated to observe their effect on dependent variables, used to establish causal relationships.

Operational Definition

A specific, clear, and measurable definition of a concept or variable for the purposes of scientific study.

Conceptual Variable

Abstract elements that represent parts of theories and are not directly observable but are measurable through operational definitions.

Measuring

The action of determining the size, amount, or degree of something using standard units or instruments.