Various quality edits

[codecov-commenter]

Codecov Report

Attention: Patch coverage is 47.13494% with 286 lines in your changes are missing coverage. Please review.

Project coverage is 63.97%. Comparing base (ab56e96) to head (d4b18dc).

Files	Patch %	Lines
.../SailDiff/Statistics/StatsCore/MathOps/StatsOps.cs	31.29%	99 Missing and 2 partials :warning:
...ore/Distributions/KolmogorovSmirnovDistribution.cs	29.78%	30 Missing and 3 partials :warning:
...s/StatsCore/Distributions/EmpiricalDistribution.cs	48.78%	18 Missing and 3 partials :warning:
...cs/StatsCore/Distributions/WilcoxonDistribution.cs	29.62%	18 Missing and 1 partial :warning:
.../StatsCore/Analysers/AnalysersBase/WilcoxonTest.cs	59.09%	14 Missing and 4 partials :warning:
...is/SailDiff/Statistics/StatsCore/MathOps/Vector.cs	0.00%	16 Missing :warning:
...ics/StatsCore/Analysers/MannWhitneyTestSailfish.cs	62.96%	7 Missing and 3 partials :warning:
...lDiff/Statistics/StatsCore/Analysers/TwoSampleT.cs	64.00%	7 Missing and 2 partials :warning:
...StatsCore/Distributions/MannWhitneyDistribution.cs	57.14%	7 Missing and 2 partials :warning:
...ibutionFactories/MannWhitneyDistributionFactory.cs	60.00%	3 Missing and 3 partials :warning:
... and 24 more

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Additional details and impacted files

```diff @@ Coverage Diff @@ ## main #164 +/- ## ========================================== + Coverage 56.42% 63.97% +7.55% ========================================== Files 316 310 -6 Lines 9833 8441 -1392 Branches 1277 1020 -257 ========================================== - Hits 5548 5400 -148 + Misses 3956 2723 -1233 + Partials 329 318 -11 ```

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