Key Physical Database Design Decisions Include

question 64

Multiple Choice

Key physical database design decisions include:

• A) choosing the storage format for each attribute from the logical database model.
• B) grouping attributes from the logical database model into physical records.
• C) arranging related records in secondary memory so that individual and groups of records can be stored, retrieved, and updated rapidly.
• D) selecting media and structures for storing data to make access more efficient.
• E) all of the above.

Grasp the methodology to calculate and interpret point estimates for various sample statistics.

Comprehend the distinction between point estimates and interval estimates, including the calculation and significance of the margin of error.

Recognize the importance of random sampling in statistical estimation to avoid bias.

Identify the conditions under which sample means are considered consistent, efficient, or unbiased estimators of population means.

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