# Convergence

I need to measure the convergence of annual provincial data relative to the national. I have data for per capita annual income for two provinces and I have to compare them with the per capita national data and evaluate if the provincial data converge toward the national data. Can I do this with variance or standard deviation? I have no idea how to go about this task but I'm pretty sure it shouldn't be to complex. I plan to work with the Excel program so if you could include how to do this with Excel that would be much apprieciated. Thanks!

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#### Solution Summary

Measure the convergence of annual provincial data relative to the national. Compare the data for per capita annual income for two provinces compare them with the per capita national data and evaluate if the provincial data converge toward the national data. Can this be done with variance or standard deviation?