If P(A) = 0

question 74

Multiple Choice

If P(A) = 0.62, P(B) = 0.47, and P(A or B) = 0.88, then P(A and B) = ________.

• A) 0.2914
• B) 1.9700
• C) 0.6700
• D) 0.2100

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Definitions:

Null Hypothesis

The null hypothesis is a default hypothesis that there is no significant difference or relationship between specified populations, any observed difference being due to sampling or experimental error.

Null Hypothesis

A statistical hypothesis that proposes there is no significant difference or effect.

Alternative Hypothesis

A statement in hypothesis testing that suggests a significant difference or relationship exists between variables, contrasting the null hypothesis.

Type I Error

The incorrect rejection of a true null hypothesis, also known as a "false positive."