Question 1 Scraps of iron were selected based on their densities x and their iron...
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Question 1 Scraps of iron were selected based on their densities x and their iron contents y were measured The results were as follows Xi Yi 2 8 2 9 27 23 3 3 1 3 2 30 28 30 3 2 3 2 3 3 3 4 34 33 30 32 a Find the regression line of y on x 10 P b Plot the scatter diagram of the data pair and regression line 10 P c Find the R values 5 P You need to do research on this question
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