Merge pull request #505 from e-clin/patch-8

Update 07-sampling.Rmd

07-sampling.Rmd

@@ -1021,7 +1021,7 @@ On December 4, 2013, National Public Radio in the US reported on a poll of Presi
 
 > After voting for him in large numbers in 2008 and 2012, young Americans are souring on President Obama.
 > 
-> According to a new Harvard University Institute of Politics poll, just 41 percent of millennials — adults ages 18-29 — approve of Obama's job performance, his lowest-ever standing among the group and an 11-point drop from April.
+> According to a new Harvard University Institute of Politics poll, just 41 percent of millennials — adults aged 18-29 — approve of Obama's job performance, his lowest-ever standing among the group and an 11-point drop from April.
 
 Let's tie elements of the real-life poll in this news article with our "tactile" and "virtual" bowl activity from Sections \@ref(sampling-activity) and \@ref(sampling-simulation) using the terminology, notations, and definitions we learned in Section \@ref(sampling-framework). You'll see that our sampling activity with the bowl is an idealized version of what pollsters are trying to do in real life.