Data That Have Been Collected on One or More Variables

question 2

Multiple Choice

Data that have been collected on one or more variables at a single point in time is referred to as

• A) Cross-sectional data
• B) Time-cross-sectional data
• C) Time series data
• D) Panel data

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Definitions:

Gradual Vision Loss

A progressive deterioration of sight over time that can occur due to factors such as age, diseases, or injuries.

Flashes of Light

Brief bursts of light perceived by the eyes, often due to vitreous detachment or retinal issues, which can appear without an external light source.

Retinal Detachment

A significant medical situation in which the retina detaches from its usual location at the back of the eye.

Fluids

Substances that have no fixed shape and yield easily to external pressure; gas or liquid.