post csv file of data for prelims prob and stats example so the stude…

…nts don't have to compute summary statistics by hand

data/user_ratings.csv

@@ -0,0 +1,36 @@
+User,Queen’s Gambit,Bridgerton
+1,4.6,5.3
+2,5.5,0.7
+3,5.8,3.6
+4,7.1,0.3
+5,6.4,3.6
+6,4.9,5.4
+7,5.3,2.6
+8,4.7,6.9
+9,7.4,5.2
+10,8,5.2
+11,4.2,5.8
+12,4.8,6.2
+13,6.6,0.4
+14,7.6,7.7
+15,4.5,6.7
+16,7.9,2.2
+17,7.4,2
+18,4.3,6.5
+19,4,2.8
+20,5.6,3.3
+21,6.6,3.4
+22,4.1,2.6
+23,7.6,7.7
+24,4.8,6.6
+25,6.2,8.2
+26,7.8,0.6
+27,7,3.8
+28,7.6,5.9
+29,4.4,3.7
+30,7.1,9.4
+31,5.2,3
+32,5.6,6.9
+33,5.8,0.2
+34,7.8,8.2
+35,6.2,4.5