Definiciones
1.NounA statistical measure defined as
Cov
(
X
,
Y
)
=
E
(
(
X
−
μ
)
(
Y
−
ν
)
)
{\displaystyle \scriptstyle \operatorname {Cov} (X,Y)=\operatorname {E} ((X-\mu )(Y-\nu ))}
given two real-valued random variables X and Y, with expected values
E
(
X
)
=
μ
{\displaystyle \scriptstyle E(X)\,=\,\mu }
and
E
(
Y
)
=
ν
{\displaystyle \scriptstyle E(Y)\,=\,\nu }
.
2.NounThe conversion of data types from wider to narrower in certain situations.