User talk:77.87.240.7

May 2020
Hello. This is a message to let you know that one or more of your recent contributions, such as the edit you made to NP (complexity), did not appear constructive and has been reverted. Please take some time to familiarise yourself with our policies and guidelines. You can find information about these at our welcome page which also provides further information about contributing constructively to this encyclopedia. If you only meant to make test edits, please use the sandbox for that. If you think I made a mistake, or if you have any questions, you may leave a message on my talk page. Thank you. Mr.Sarcastic (talk) 15:35, 16 May 2020 (UTC)
 * If this is a shared IP address, and you did not make the edits referred to above, consider creating an account for yourself or logging in with an existing account so that you can avoid further irrelevant notices.

February 2021
Hello, I'm DVdm. I noticed that you made a change to an article, Binomial distribution, but you didn't provide a source. I’ve removed it for now, but if you’d like to include a citation to a reliable source and re-add it, please do so! If you think I made a mistake, or if you have any questions, you can leave me a message on my talk page. Thanks. DVdm (talk) 11:33, 16 February 2021 (UTC)

Please do not add or significantly change content without citing verifiable and reliable sources. Before making any potentially controversial edits, it is recommended that you discuss them first on the article's talk page. Please review the guidelines at Citing sources and take this opportunity to add references to the article. DVdm (talk) 14:43, 16 February 2021 (UTC)

May 2021
Hello, I'm NonsensicalSystem. I noticed that you recently removed content from Joan Rivers without adequately explaining why. In the future, it would be helpful to others if you described your changes to Wikipedia with an accurate edit summary. If this was a mistake, don't worry; the removed content has been restored. If you would like to experiment, please use the sandbox. If you think I made a mistake, or if you have any questions, you can leave me a message on my talk page.    NonsensicalSystem (error?)(.log) 11:21, 17 May 2021 (UTC)