CONSTRAINED FIT INFORMATIONshow precise values?

 
An overall fit to 4 branching ratios uses 5 measurements and one constraint to determine 4 parameters. The overall fit has a $\chi {}^{2}$ = 0.1 for 2 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
 x8    100
 x9     100
   x1  x2  x8  x9
 
  Mode Fraction (Γi / Γ)Scale factor

Γ1  ${{\mathit K}_S^0}$ $\rightarrow$ ${{\mathit \pi}^{0}}{{\mathit \pi}^{0}}$  $0.3069$ $\pm0.0005$ 
Γ2  ${{\mathit K}_S^0}$ $\rightarrow$ ${{\mathit \pi}^{+}}{{\mathit \pi}^{-}}$  $0.6920$ $\pm0.0005$ 
Γ8  ${{\mathit K}_S^0}$ $\rightarrow$ ${{\mathit \pi}^{\pm}}{{\mathit e}^{\mp}}{{\mathit \nu}_{{e}}}$  ($7.04$ $\pm0.08$) $ \times 10^{-4}$ 
Γ9  ${{\mathit K}_S^0}$ $\rightarrow$ ${{\mathit \pi}^{\pm}}{{\mathit \mu}^{\mp}}{{\mathit \nu}_{{\mu}}}$  ($4.69$ $\pm0.05$) $ \times 10^{-4}$