[���河徹人] [��녤�������] [brian weiss] [dimmer 中文] [David, the promoter of an outdoor​ concert, expects a net profit of​ $100,000, unless it​ rains, which would reduce the net profit to ​$40,000. The probability of rain is 0.20. For a premium of ​$29,000 David can purchase insurance coverage that would pay him​ $100,000 in case of rain. F] [niên giám báo chÃ] [bong nguoi duoi ỷang] [nước nguồn xuôi mãi] [đồng tÃÂnh] [lưu tư hạo]