\set ECHO none
set_prob

(1 row)
lo|hi
0|10
(1 row)
lo|hi
-Infinity|Infinity
(1 row)
lo|hi
0|Infinity
(1 row)
set_prob

(1 row)
set_prob

(1 row)
lo|hi
-5|30
(1 row)
lo|hi
-1.5|7.25
(1 row)