This list shows the number of years that 99 U. S. Supreme Court Justices served. 4 6 8 13 15 18
26 31
1 4 6 9 13 15 19 23 26 32
1 4 6 9 14 16 19 23 27 33
5 7 9 14 16 20 23 28 33
5 7 10 14 16 20 23 28 33
7 10 14 16 20
28 34
3 5 7 10 15 17 20 24 29 34
3
8 11
17 20 24 30 34
3 5 8 13
18 21 26 30 36
4 5 8 13
18 21 26 31
W W W N N N O
What number of years is the mode the Supreme Court justices served?
a. 20
c. 23
b. 15
d. 5