NumberTheory`Rationalize` was available as an add-on package in previous versions of Mathematica and is now available on the web at ...
NumericalMath`IntervalRoots` was available as an add-on package in previous versions of Mathematica and is now available on the web at ...
NumericalMath`PolynomialFit` was available as an add-on package in previous versions of Mathematica and is now available on the web at ...
NumericalMath`TrigFit` was available as an add-on package in previous versions of Mathematica and is now available on the web at ...
Utilities`MemoryConserve` was available as an add-on package in previous versions of Mathematica and is now available on the web at ...
Utilities`ShowTime` was available as an add-on package in previous versions of Mathematica and is now available on the web at library.wolfram.com/infocenter/MathSource/6792.
ChiSquarePValue[x, df] gives the cumulative probability beyond x for the \[Chi]^2 distribution with df degrees of freedom.
FRatioPValue[x, n, m] gives the cumulative probability beyond x for the F-ratio distribution with n and m degrees of freedom.
NormalPValue[x] gives the cumulative density beyond x for a normal distribution with zero mean and unit variance.
StudentTPValue[x, df] gives the cumulative probability beyond x for Student's t distribution with df degrees of freedom.