fixed mean/quantile creations
fixed mean/quantile creations


Former-commit-id: 7035bb379d2d879fcf1c0bb91e23b45d7d1ced14 [formerly 581da4709a21b50b3d534d3e5e71232076107325] [formerly 581da4709a21b50b3d534d3e5e71232076107325 [formerly 04a26d518101a4b20484dda28528010652125e97]]
Former-commit-id: 4dcd30c0ab1e23f63befd8f180b741fe7336700c
Former-commit-id: df4780b416cee8d2ecb6d313f2af420900c6d9e4
gem/oq-engine,gem/oq-engine,gem/oq-engine,gem/oq-engine,gem/oq-engine