作业帮Business Statistics who can help me do it thanks
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Business Statistics who can help me do it thanks
The average earnings of 5000 workers on a project were found to be $1500.00 with a standard deviation of $200.00.Assuming that the earnings are normally distributed,and explaining how your answers were obtained,how many workers earned:(a) More than $1500.00?(4 marks) (b) More than $1300.00 but less than $1700.00?(4 marks) (c) Less than $1300.00?(4 marks) (d) More than $1500.00 but less than $1900.00?(4 marks) (e) Name two (2) of four (4) important characteristics of the normal distribution.(4 marks)
The average earnings of 5000 workers on a project were found to be $1500.00 with a standard deviation of $200.00.Assuming that the earnings are normally distributed,and explaining how your answers were obtained,how many workers earned:(a) More than $1500.00?(4 marks) (b) More than $1300.00 but less than $1700.00?(4 marks) (c) Less than $1300.00?(4 marks) (d) More than $1500.00 but less than $1900.00?(4 marks) (e) Name two (2) of four (4) important characteristics of the normal distribution.(4 marks)
已知 一个工程中 5000个工人的工人的平均收入为1500美元 比标准偏差了200美元 假设这个收入的分配的正常的 请问你是怎样得到的答案 有多少个工人得到了这个收入 (a)大于1500美元（4分） (b)超过1300美元但是少于1700美元（4分） (c)少于1300美元（4分） (d)超过1500但是少于1900美元（4分） (e)给出两种到四种正常分配的规格参数（4分）
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