Comments for Innumeracy https://innumeracy.net The Mathematical Equivalent of Illiteracy..... Mon, 18 Oct 2021 17:11:30 +0000 hourly 1 Comment on Welcome to Innumeracy.net by Anon https://innumeracy.net/welcome/#comment-1504 Mon, 18 Oct 2021 17:11:30 +0000 http://innumeracy.net/?p=8#comment-1504 I found this example of innumeracy in the wild.

Article title: TIL 31% of Americans polled in October 1964 “disapproved” of the Civil Rights Act. Another 10% polled as “Don’t know.”

Innumerate comment:

58% approval means either significant numbers of black people disagreed with civil rights (which obviously isn’t the case) or less than 50% of whites supported it.

Reason it’s innumeracy: White people were about 88% of the US population in 1964. So even if an unlikely 100% of the non-whites were in favor of the Civil Rights Act, it still means that at a minimum, 52% of whites were in favor of the Act.

See https://old.reddit.com/r/todayilearned/comments/qa418e/til_31_of_americans_polled_in_october_1964/hh3lwu3/

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Comment on Don’t ignore scale by You don't know me! https://innumeracy.net/dont-ignore-scale/#comment-187 Tue, 06 Dec 2016 16:24:28 +0000 http://innumeracy.net/?p=94#comment-187 Switch “zoom in” and “zoom out”. ilspatialacy? Spatial illiteracy.

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Comment on 4 times less? by Joel Reyes Noche https://innumeracy.net/4-times-less/#comment-7 Thu, 18 Feb 2016 13:11:19 +0000 http://innumeracy.net/?p=63#comment-7 You can use up to four times *more* (+400%), that is, five times as much. To say “four times less” (-400%) doesn’t make much sense in this context.

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Comment on Cutting a board by admin https://innumeracy.net/cutting-a-board/#comment-6 Wed, 17 Feb 2016 18:05:36 +0000 http://innumeracy.net/?p=56#comment-6 Thanks Joel! I’ve edited to provide attribution and mention the member who put the question up.

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Comment on Cutting a board by Joel Reyes Noche https://innumeracy.net/cutting-a-board/#comment-5 Wed, 17 Feb 2016 12:31:00 +0000 http://innumeracy.net/?p=56#comment-5 You probably saw the image from Mathematics Stack Exchange, where the question about it (http://math.stackexchange.com/q/379927/18398) is currently the most highly voted (668 votes).

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Comment on Bad Pie Chart by admin https://innumeracy.net/bad-pie-chart/#comment-4 Thu, 28 Jan 2016 10:32:21 +0000 http://innumeracy.net/?p=12#comment-4 In reply to Joel Reyes Noche.

Yes, and I have one in mind, an example from finance. Will post it in a few days. The site is still “in progress”, next, I need to add a menubar, and a tab for readers to submit examples. Thanks for visiting.

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Comment on Bad Pie Chart by Joel Reyes Noche https://innumeracy.net/bad-pie-chart/#comment-3 Thu, 28 Jan 2016 01:22:42 +0000 http://innumeracy.net/?p=12#comment-3 Another category you can add is *graphs*, as I am sure you will later have a lot of examples showing errors in graphing. (I think a post can belong in more than one category.)

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