The standard_error_multiplier CF property.
| Examples: |
|---|
>>> f.standard_error_multiplier = 2.0
>>> f.standard_error_multiplier
2.0
>>> del f.standard_error_multiplier
>>> f.setprop('standard_error_multiplier', 2.0)
>>> f.getprop('standard_error_multiplier')
2.0
>>> f.delprop('standard_error_multiplier')