Fix bug with observeAndSample function from Histogram #3

Job	Run time
cabal / ghc-8.10.7 / ubuntu-latest	5m 8s
cabal / ghc-8.10.7 / ubuntu-latest	5m 8s
cabal / ghc-8.10.7 / ubuntu-latest	5m 8s
stack --stack-yaml ./stack-8.10.yaml / ubuntu-latest	4m 52s
stack --stack-yaml ./stack-8.10.yaml / ubuntu-latest	4m 52s
stack --stack-yaml ./stack-8.10.yaml / ubuntu-latest	36s
stack --stack-yaml ./stack-9.0.yaml / ubuntu-latest	4m 55s
stack --stack-yaml ./stack-9.0.yaml / ubuntu-latest	4m 55s
stack --stack-yaml ./stack-9.0.yaml / ubuntu-latest	23s
cabal / ghc-9.0.2 / ubuntu-latest	5m 35s
cabal / ghc-9.0.2 / ubuntu-latest	5m 35s
cabal / ghc-9.0.2 / ubuntu-latest	5m 35s
stack --stack-yaml ./stack-9.2.yaml / ubuntu-latest	4m 35s
stack --stack-yaml ./stack-9.2.yaml / ubuntu-latest	21s
stack --stack-yaml ./stack-9.2.yaml / ubuntu-latest	21s
cabal / ghc-9.2.8 / ubuntu-latest	4m 58s
cabal / ghc-9.2.8 / ubuntu-latest	4m 58s
cabal / ghc-9.2.8 / ubuntu-latest	4m 58s
stack --stack-yaml ./stack-9.4.yaml / ubuntu-latest	4m 54s
stack --stack-yaml ./stack-9.4.yaml / ubuntu-latest	4m 54s
stack --stack-yaml ./stack-9.4.yaml / ubuntu-latest	44s
cabal / ghc-9.4.8 / ubuntu-latest	5m 16s
cabal / ghc-9.4.8 / ubuntu-latest	5m 16s
cabal / ghc-9.4.8 / ubuntu-latest	5m 16s
stack --stack-yaml ./stack-9.6.yaml / ubuntu-latest	4m 55s
stack --stack-yaml ./stack-9.6.yaml / ubuntu-latest	4m 55s
stack --stack-yaml ./stack-9.6.yaml / ubuntu-latest	29s
cabal / ghc-9.6.3 / ubuntu-latest	3m 44s
cabal / ghc-9.6.3 / ubuntu-latest	3m 44s
cabal / ghc-9.6.3 / ubuntu-latest	3m 44s
	2h 0m 44s

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