OPEC Reference Basket

weighted average of prices for petroleum blends produced by OPEC members

en-GB/ˈəʊpɛk ˈɹɛfɹəns ˈbɑːskɪt/
en-US/ˈoʊˌpɛk ˈɹɛfɹəns ˈbæskɪt/

دسته بندی ها:

weighted mean