If Events a and B Are Independent, Then P

question 76

Multiple Choice

If events A and B are independent, then p ( A and B ) = _________.

• A) p ( A ) + p ( B ) - p ( A and B )
• B) p ( A ) p ( B )
• C) p ( A or B )
• D) 0

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Definitions:

Type I Error

Occurs when a true null hypothesis is incorrectly rejected, falsely indicating that there is a significant effect when there is none.

Lowering Alpha

The process of reducing the alpha level, or the significance level, to decrease the likelihood of committing a Type I error in statistical hypothesis testing.

Type II Error

The error that occurs when a false null hypothesis is not rejected, implying a miss in detecting an actual effect or difference.

Highly Significant

A statistical term indicating that the results observed are very unlikely to have occurred by chance alone, often used for results with very low p-values.