[x] Do you have Node.js and all the relevant dev-dependencies installed?
[ ] Is this a bug fix?
[x] Is this an enhancement?
[x] Is this a feature request?
NOTE: Provide a clear and concise description of the feature that needs to be added! Or if its a bug, then provide the necessary steps to reproduce it along with screenshots.
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Function: M.avg()
Argument: Array-of-numbers (integers and floats) with all other arguments returning TypeError
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NOTE: Provide a clear and concise description of the feature that needs to be added! Or if its a bug, then provide the necessary steps to reproduce it along with screenshots.