statistics - 给定alpha和均值计算确定系数(Calculating coefficient of determination given alpha and mean)

Question

While trying a data science quiz on analyticsvidya.com, I came across the following question:

(在analyticsvidya.com上尝试数据科学测验时，我遇到了以下问题：)

Consider the following sample: 1,2,3,4,5,6.

(考虑以下示例：1,2,3,4,5,6。)

Alpha = 0.05 and the population mean is equal to 4.5.

(Alpha = 0.05，总体平均值等于4.5。)

Calculate the coefficient of determination for this data.

(计算此数据的确定系数。)

The answer given is 0.25

(给出的答案是0.25)

I thought coefficient of determination was a property of a regression.

(我认为确定系数是回归的性质。)

That is, relation between two variables.

(即，两个变量之间的关系。)

Is there another interpretation of coefficient of determination that applies to a single series?

(是否有适用于单个序列的确定系数的另一种解释？)

  ask by Vivek Agarwal translate from so

Answer 1

等待大神答复