What is a reasonable hourly rate for small ad hoc data analysis consulting?

I got approached to help someone and perform some ad hoc analysis. They asked me to not just do the analysis but teach them as well. Unfortunately due to the timeline it will probably be best to just do the analysis myself. I was asking around for reasonable rates and someone told me $50 an hour is a reasonable rate. To be clear this isn’t a long term project, it’s over the next 1.5 months to conduct some analysis and …

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