Table 1 Possible categories of ${\mathbf{(}{\mathit{\beta }}_{\mathbf{1}{\mathit{a}}_{\mathit{i}}}\mathit{,}{\mathit{\beta }}_{\mathbf{1}{\mathit{h}}_{\mathit{i}}}\mathbf{)}}^{\mathit{T}}$

$\mathbf{(}{\mathit{\beta }}_{\mathbf{1}{\mathit{a}}_{\mathit{i}}}\mathbf{,}{\mathit{\beta }}_{\mathbf{1}{\mathit{h}}_{\mathit{i}}}\mathbf{)}$

$\mathbf{(}{\mathit{\mu }}_{{\mathit{\beta }}_{\mathbf{1}{\mathit{a}}_{\mathit{i}}}}\mathbf{,}{\mathit{\mu }}_{{\mathit{\beta }}_{\mathbf{1}{\mathit{h}}_{\mathit{i}}}}\mathbf{)}$

$\mathbf{\text{Corr}}({\mathit{\beta }}_{\mathbf{1}{\mathit{a}}_{\mathit{i}}},{\mathit{\beta }}_{\mathbf{1}{\mathit{h}}_{\mathit{i}}})$