<s>
In	O
statistics	O
,	O
a	O
record	B-General_Concept
value	I-General_Concept
or	O
record	B-General_Concept
statistic	I-General_Concept
is	O
the	O
largest	O
or	O
smallest	O
value	O
obtained	O
from	O
a	O
sequence	O
of	O
random	O
variables	O
.	O
</s>
<s>
The	O
theory	O
is	O
closely	O
related	O
to	O
that	O
used	O
in	O
order	B-General_Concept
statistics	I-General_Concept
.	O
</s>
