fix empty estimated_stochastic

[andreramosfdc]

No description provided.

[codecov]

Codecov Report

❌ Patch coverage is 66.66667% with 1 line in your changes missing coverage. Please review.
✅ Project coverage is 93.86%. Comparing base (cba2be3) to head (edcdcac).
⚠️ Report is 3 commits behind head on main.

Files with missing lines	Patch %	Lines
src/utils.jl	66.66%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main      #81      +/-   ##
==========================================
- Coverage   93.98%   93.86%   -0.12%     
==========================================
  Files           9        9              
  Lines         732      734       +2     
==========================================
+ Hits          688      689       +1     
- Misses         44       45       +1     

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