When a Web Page Changes, _____ Update Their Indexes and Databases

question 72

Multiple Choice

When a Web page changes, _____ update their indexes and databases automatically to reflect the change.

• A)picture-frame directories
• B)open-ended directories
• C)human-powered directories
• D)crawler-based directories

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Definitions:

P-value

A measure in hypothesis testing that indicates the probability of obtaining a result at least as extreme as the one observed, assuming the null hypothesis is true.

Null Hypothesis

A statement in inferential statistics that there is no effect or no difference, and any observed deviation from this state is due to chance.

Rejection Level

The threshold or critical value that determines whether to reject the null hypothesis in statistical hypothesis testing, often denoted by alpha.

P-value

A measure in statistical hypothesis testing that quantifies the evidence against a null hypothesis, with lower values indicating stronger evidence.