jh-adv-data-sci / jh-adv-data-sci/adv_data_sci_2023

Clarification about counts of missing data

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Description

For #3, we are asked to "Create counts of missing values for diabetes
status and alcohol use using SQL commands." Should this be the count of missing values within the table from which the data is coming from, or should it also include a count of those who are not in all relevant tables? If the latter, what is the reference population? For example, do we want the count of those missing data out of all participants in the demographics table?

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  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
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Research direction

Start by reading the referenced #3 assignment and its SQL commands context, then inspect how the demographics table relates to the diabetes-status and alcohol-use data. Done means the reference population and counting scope for missing values are explicitly documented.

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Assessment

Tech stack
sql
Domain
databases
Issue type
Documentation
Difficulty
2/5
Estimated time
1-3 hours
Activity status
Stale
Clarity
Needs clarification
Newbie friendliness
15/100

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