Question

Explain the longitudinal and crossectional

Answer 1

longitude is an imaganery line on earth which help us to see our location in world map

Answer 2

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Longitudinal studies and cross-sectionalstudies are two different types of research design.

In a cross-sectional study you collect data from a population at a specific point in time; in alongitudinal study you repeatedly collect data from the same sample over an extended period of time.