Which of the Following Statements Is Always True

question 61

Multiple Choice

Which of the following statements is always true?

• A) −1 ≤ P(E_i) ≤ 1
• B) P(A) = 1 − P(A^c)
• C) P(A) + P(B) = 1
• D) both P(A) = 1 − P(A^c) and P(A) + P(B) = 1

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Definitions:

Population Parameters

Characteristics that summarize or describe aspects of a population, such as mean, variance, or median.

N - 1 Adjustment

A statistical method used to correct the bias in the variance estimate of a sample.

Standard Deviation

A measure that quantifies the amount of variation or dispersion of a set of data values.

Scores

Quantitative values assigned to individuals or items for the purpose of evaluation or measurement.