A Sampling Method That Separates the Population into Different Subgroups,and

question 11

Multiple Choice

A sampling method that separates the population into different subgroups,and then samples all of these subgroups,is the definition for:

• A)stratified sampling.
• B)area sampling.
• C)cluster sampling.
• D)simple sampling.
• E)comprehensive sampling.

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Definitions:

Transition Metals

Elements found in the central block of the periodic table, characterized by their ability to form variable oxidation states and to create colored compounds.

Covalent Bond

A type of chemical bond where two atoms share one or more pairs of valence electrons, creating a stable balance of attractive and repulsive forces between atoms.

Carbon Tetrabromide

A chemical compound with the formula CBr4, known for its high density and usage in organic synthesis as a solvent or reagent.

Sulfur Trioxide

A chemical compound with the formula SO3, which is a key intermediate in the sulfuric acid manufacturing process, known for its role in acid rain formation when released into the atmosphere.