If a and B Are Mutually Exclusive Events with P(A)

question 15

Multiple Choice

If A and B are mutually exclusive events with P(A) = 0.3 and P(B) = 0.5, then P(A ∩ B) =

• A) 0.30.
• B) 0.15.
• C) 0.00.
• D) 0.20.

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Definitions:

Confidence Interval

A portfolio of values, extracted from sampling efforts, believed to encapsulate the undiscovered value of a population attribute.

Normal Distribution

A balanced probability distribution around the mean, demonstrating that occurrences are more frequent near the mean than away from it.

Margin of Error

An indicator of the precision of an estimate in statistics, showing the range within which the true value is expected to lie with a certain level of confidence.

Confidence Interval

A range of values that is used to estimate the true value of a population parameter with a certain level of confidence.