1933, in the meaning defined above
student's t distribution
Student's t-test
student body
“Student's t-test.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/Student%27s%20t-test. Accessed 24 Nov. 2024.
Britannica.com: Encyclopedia article about Student's t-test
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