In the answer boxes below the table, provide the values for the table cells that have question marks.
xbar sx ybar sy r intercept of least sq. line slope of least sq. line
a) 30 4 18 6 -0.2 ?? ??
b) 100 18 60 10 0.9 ?? ??
c) ?? 0.8 50 15 ?? -10 15
d) ?? ?? 18 4 -0.6 30 -2
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