CONSTRAINED FIT INFORMATIONshow precise values?

 
An overall fit to 5 branching ratios uses 20 measurements and one constraint to determine 5 parameters. The overall fit has a $\chi {}^{2}$ = 10.5 for 16 degrees of freedom.
 
The following off-diagonal array elements are the correlation coefficients <$\mathit \delta $x$_{i}$~$\delta $x$_{j}$> $/$ ($\mathit \delta $x$_{i}\cdot{}\delta $x$_{j}$), in percent, from the fit to parameters ${{\mathit p}_{{i}}}$, including the branching fractions, $\mathit x_{i}$ =$\Gamma _{i}$ $/$ $\Gamma _{total}$. The fit constrains the ${{\mathit x}_{{i}}}$ whose labels appear in this array to sum to one.
 
 x1  100
 x2   100
 x3    100
 x5     100
 x6      100
   x1  x2  x3  x5  x6
 
  Mode Fraction (Γi / Γ)Scale factor

Γ1  ${{\mathit \Lambda}}$ $\rightarrow$ ${{\mathit p}}{{\mathit \pi}^{-}}$  $0.639$ $\pm0.005$ 
Γ2  ${{\mathit \Lambda}}$ $\rightarrow$ ${{\mathit n}}{{\mathit \pi}^{0}}$  $0.358$ $\pm0.005$ 
Γ3  ${{\mathit \Lambda}}$ $\rightarrow$ ${{\mathit n}}{{\mathit \gamma}}$  $0.00175$ $\pm0.00015$ 
Γ5  ${{\mathit \Lambda}}$ $\rightarrow$ ${{\mathit p}}{{\mathit e}^{-}}{{\overline{\mathit \nu}}_{{e}}}$  ($8.32$ $\pm0.14$) $ \times 10^{-4}$ 
Γ6  ${{\mathit \Lambda}}$ $\rightarrow$ ${{\mathit p}}{{\mathit \mu}^{-}}{{\overline{\mathit \nu}}_{{\mu}}}$  ($1.57$ $\pm0.35$) $ \times 10^{-4}$