统计学中怎样求平均数,众数,中位数,方差,标准差?题目数据如下：The following table gives the cumulative frequency distribution of annual incomes (in thousands of dollars) for a sample of 200 families selected from a city.Income

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统计学中怎样求平均数,众数,中位数,方差,标准差?题目数据如下：The following table gives the cumulative frequency distribution of annual incomes (in thousands of dollars) for a sample of 200 families selected from a city.Income
统计学中怎样求平均数,众数,中位数,方差,标准差?题目数据如下：
The following table gives the cumulative frequency distribution of annual incomes (in thousands of dollars) for a sample of 200 families selected from a city.
Income (RM1000's)\x05f
10 to less than 25\x0524
10 to less than 40\x0585
10 to less than 55\x05149
10 to less than 70\x05172
10 to less than 85\x05186
10 to less than 100\x05200

统计学中怎样求平均数,众数,中位数,方差,标准差?题目数据如下：The following table gives the cumulative frequency distribution of annual incomes (in thousands of dollars) for a sample of 200 families selected from a city.Income 怎样求众数,中位数,平均数,标准差,方差（简便公式）大神们帮帮忙用频率分布直方图如何求平均数方差众数中位数方差标准差与平均数众数中位数在统计学上各自的作用是作用求平均数中位数众数求平均数,众数,中位数. 求平均数众数中位数求平均数和中位数,众数. 求平均数、中位数和众数. 生活中怎样选用平均数,中位数,和众数? excel中怎样计算算术平均数,众数,中位数怎样求一组数据的平均数,中位数,众数? 均值,方差,中位数,众数怎样计算统计学中,中位数和众数一样,但小于平均数,是左偏右偏还是对称分布?我现在众数3200,中位数3200,平均数3273.66 EXCEL中如何求平均数,众数和中位数? 方差,中位数,众数,平均数计算公式如题根据平均数、众数、中位数和方差比较数据众数,平均数,中位数,方差,极差,标准差能说明什么?