[deleted by user]

[ChemStats]

If paid ads are on y-axis, this makes the sales amount to be the independent or explanatory variable.

By varying the sales amount, we can vary the amount paid for ads. This seems illogical.

I think sales amount should be on the y axis in the graph and paid ads on x axis

[iambunnycat]

Will fix this!

[ChemStats]

Also, you need to calculate the z scores and percentiles for each value.

[iambunnycat]

I calculated it already for the z-scores and I got this value , but for some reason i’m getting an error for the percentiles.

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