True or False: If P(A or B)= 1

question 101

True/False

True or False: If P(A or B)= 1.0, then A and B must be collectively exhaustive.

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Definitions:

Data

Information collected for reference or analysis, often numerical.

Squared Deviation

The squared differences between each observation and the mean, used as part of the calculation for variance.

Variance

A measure of the dispersion representing the average of the squared differences from the Mean.

Score

A numerical or categorical representation of a performance, achievement, or the outcome of an assessment.