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Specialized on Data processing, Data management Implementation plan, Data Collection tools - electronic and paper base, Data cleaning specifications, Data extraction, Data transformation, Data load, Analytical Datasets, and Data analysis. BJ Data Tech Solutions teaches on design and developing Electronic Data Collection Tools using CSPro, and STATA commands for data manipulation. Setting up Data Management systems using modern data technologies such as Relational Databases, C#, PHP and Android.

quarterly data--calculate the standard deviation of quarterly data over the past four years
quarterly data--calculate the standard deviation of quarterly data over the past four years

Good morning,

I am currently working with the quarterly return data and want to calculate the standard deviation of the return over the past four years.

I have no clue how to construct and calculate. Any one can help?

Thanks in advance!

Best wishes,

Shuhui

BJ Data Tech Solution

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quarterly data--calculate the standard deviation of quarterly data over the past four years

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