$$\text { Determine whether or not the graph is a tree. If it is not, explain why. }$$

question 22

Multiple Choice

$$\text { Determine whether or not the graph is a tree. If it is not, explain why. }$$

• A) The graph is not a tree because it contains a circuit.
• B) The graph is not a tree because two edges overlap.
• C) The graph is not a tree because it is disconnected.
• D) The graph is a tree.

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Definitions:

Variance

A measure of variability that represents the mean of all squared deviation scores.

Nominal

Scale used to classify or categorize data into groups that have different names but are not related to each other in any other systematic way.

Scale of Measurement

The method or standard used to quantify the variables researchers are interested in, such as nominal, ordinal, interval, and ratio scales.

Interval

Scale used to categorize, rank order, and arrange data so that an equal interval unit appears between each of the scores.