Chance News 110: Difference between revisions
| Line 10: | Line 10: | ||
==Flint water crisis== | ==Flint water crisis== | ||
[http://onlinelibrary.wiley.com/doi/10.1111/j.1740-9713.2017.01016.x/full The murky tale of Flint's deceptive water data]<br> | |||
by Robert Langkjær-Bain, ''Significance'', 5 April 2017 | |||
[https://fivethirtyeight.com/features/what-went-wrong-in-flint-water-crisis-michigan/ What went wrong In Flint]<br> | [https://fivethirtyeight.com/features/what-went-wrong-in-flint-water-crisis-michigan/ What went wrong In Flint]<br> | ||
by Anna Maria Barry-Jester, FiveThirtyEight, 26 January 2016 | by Anna Maria Barry-Jester, FiveThirtyEight, 26 January 2016 | ||
Revision as of 00:06, 16 June 2017
Quotations
Forsooth
Statistical artifacts
Flint water crisis
The murky tale of Flint's deceptive water data
by Robert Langkjær-Bain, Significance, 5 April 2017
What went wrong In Flint
by Anna Maria Barry-Jester, FiveThirtyEight, 26 January 2016
Interracial marriage
Peter Doyle sent a link to this chart from the Economist:
- Daily chart: Interracial marriages are rising in America
- Economist, 12 June 2017
,Quoting from the article, one reader commented:
"Of the roughly 400,000 interracial weddings in 2015, 82% involved a white spouse, even though whites account for just 65% of America’s adult population. " If you lump the population into just two groups A and B, 100% of intergroup marriages will involve a spouse from group A, no matter what fraction of the population belongs to group A.
Exercise: 2015 census data is available by googling "us census quickfacts". While the categories don't precisely match those in this piece, you can use this data to get a rough estimate the fraction of interracial weddings that would involve a white spouse under random pairing. What do you get? Is your answer more or less than 82%?
Peter notes that he got just over 82%. Here is his solution (using Mathematica):
