The Probability of the Union of Two Events with Nonzero

question 70

Multiple Choice

The probability of the union of two events with nonzero probabilities

• A)cannot be less than one
• B)cannot be one
• C)cannot be less than one and cannot be one
• D)None of the other answers is correct.

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Definitions:

Sample Variances

A measure of dispersion calculated from a sample of a population, representing the average of the squared deviations from the sample mean.

Population Variances

Population variances measure the dispersion of all data points in a population around the population mean, reflecting the overall variability within that population.

Significance Level

A threshold of probability set before conducting a hypothesis test, below which the null hypothesis is rejected, symbolized as alpha (α).

Standard Deviation

Standard deviation is a statistical measure that quantifies the variation or dispersion of a set of data points or values around their mean.