Answer:
President William McKinley asks Congress to declare war on Spain on April 20, 1898.
Explanation:
Answer:
The most prominent characteristic of cross-sectional designs is that all of the observed data are collected at a single point in time. This differs from longitudinal and experimental designs, which make multiple observations over time.
Explanation:
The most prominent characteristic of cross-sectional designs is that all of the observed data are collected at a single point in time. This differs from longitudinal and experimental designs, which make multiple observations over time.
