For Two Variables, a Positive Correlation Coefficient Indicates

question 27

Multiple Choice

For two variables, a positive correlation coefficient indicates .

• A) a linear relationship exists for which one variable increases as the other also increases
• B) a linear relationship exists for one variable that increases while the other decreases
• C) that the two variables have no linear relationship with each other
• D) a nonlinear relationship with no linear correlation between the two variables

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Definitions:

Fine Adjustment Knob

The fine adjustment knob is part of a microscope used for making small adjustments to the focus, allowing for clearer visualization of the specimen at high magnifications.

High-Power Objective

A microscope lens typically with magnification of 40x to 100x, used for viewing fine details of a specimen.

Iris Diaphragm

A part of the microscope that adjusts the size of the aperture, controlling the amount of light passing through the specimen.

Stereomicroscope

A type of microscope designed for low magnification observation of a sample using light reflected from the surface of an object rather than transmitted through it.