<p>I assume you are referring to <a href="https://stats.stackexchange.com/q/392582/">Determine if data is IID</a>. </p>

<p>I see no reason you have to delete an answer just because someone downvoted it.  In general, unless the downvoter leaves a comment explaining their downvote, you have no idea who the downvoter is, nor why they downvoted.  Downvotes just happen sometimes.  Unless you've come to change your mind about your answer for some reason unrelated to the downvote, I'd leave it there.  </p>

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<p>Unrelatedly, I applaud your openness about the issue, and your sincere efforts to understand the site and make the best contributions you can.  I find this attitude welcome and refreshing.  You: (1) raised the issue here on meta for discussion, (2) engaged politely and productively with commenters, and (3) substantially reworked your answer based on what you came to understand about the situation.  We should all aspire to this level of maturity.  </p>
