Why Do Researchers Usually Not Choose to Measure Populations

question 39

Multiple Choice

Why do researchers usually not choose to measure populations?

• A)The data are not as reliable as data from samples.
• B)Populations are not representative of selected samples.
• C)Data from populations can be skewed by deviant subjects.
• D)It is virtually impossible to measure populations.

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Definitions:

NaOH

Sodium hydroxide, a strong base used in many industrial and chemical processes.

Oxygen

A chemical element with the symbol O and atomic number 8; it is a highly reactive nonmetal and an oxidizing agent that readily forms oxides with most elements as well as with other compounds.

Electron Orbitals

Regions in an atom where there is a high probability of finding electrons, with each orbital having a distinctive shape and energy level.

Covalent Compound

A chemical compound formed by the sharing of pairs of electrons between atoms.