When Data Is Collected Using a Qualitative,nominal Variable,i

question 31

Multiple Choice

When data is collected using a qualitative,nominal variable,i.e. ,male or female,what is true about a frequency distribution that summarizes the data?

• A)Upper and lower class limits must be calculated.
• B)Class midpoints can be computed.
• C)Number of classes corresponds to number of the variable's values.
• D)The "2 to the k rule" can be applied.

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Definitions:

Oil Immersion

A microscopy technique that involves placing a drop of oil on a slide to increase the resolution of the microscope by reducing light refraction.

Low-Power

Typically refers to a setting or mode of operation in devices that consume minimal electrical energy or to optical devices (like microscopes) using objective lenses with lower magnification.

Compound Light Microscope

An optical instrument that uses visible light and a system of lenses to magnify images of small samples.

Base

A substance that can accept hydrogen ions in a solution and has a pH greater than 7 in its aqueous form.