Data for some problems   

Problem 1  

input weight @@;
cards;
1935 1556 1752 1969 1804 1842 1994 1810 1827
1725 2003 1499 1809 1795 1622 1620 1777 2035
;

Problem 2  

The variables are breadth (numeric) and era (character):   

filename skulls url 'https://webpages.uidaho.edu/~renaes/Data/Egypt%20skulls.csv';

Problem 3  

input with without;
cards;
8 6
7 5
9 5
5 4
9 7
8 7
10 7
7 5
6 6
9 5
;

Problem 6  

input scores group$;
cards;
101 A
108 A
98 A
107 A
111 A
151 B
149 B
160 B
112 B
126 B
101 C
109 C
198 C
186 C
160 C
;

Problem 7  


input carbonation strength;
cards;
8.0 22.8
15.0 27.2
16.5 23.7
20.0 17.1
20.0 21.5
27.5 18.6
30.0 16.1
30.0 23.4
35.0 13.4
38.0 19.5
40.0 12.4
45.0 13.2
50.0 11.4
50.0 10.3
55.0 14.1
55.0 9.7
59.0 12.0
65.0 6.8
;