vdirectioner7634
06.04.2021 •
Mathematics
The table shows the size of outdoor decks (x) in square feet, and the estimated dollar cost to construct them ().
х
y
x2
ху
100
600
10,000
60,000
144
850
20,736
122,400
225
1,300
50,625
292,500
324
1.900
104,976
615,600
400
2,300
160,000
920,000
2x=1,193 y=6,950 5x2=346,337 Sxy=2,010,500
Which regression equation correctly models the data?
y = 5.83x – 1.04
y = 5.83x + 17
y = 5.71x + 29
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