What's the difference between your C and the option D (use the 90 samples) If I ... | Hacker News

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		wodenokoto on Dec 7, 2022 \| parent \| context \| favorite \| on: A homework question in someone’s 11th grade statis... What's the difference between your C and the option D (use the 90 samples) If I got 120 rows, where 30 was NULL, I'd throw those 30 away.

pestatije on Dec 8, 2022 [–]

Those 30 are not NULL, they're "chose not to answer", usually classified as "don't know / won't answer"

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