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Researchers who measure reaction time for human subjects often observe a negative relationship between the reaction time scores and the number of errors that the subjects commit. This relationship is known as the speed-accuracy trade-off. The following data are from a reaction time study where the researcher recorded the average reaction time (milliseconds) and the total number of errors for each individual in a sample of n = 8 subjects.
Subject Reaction Time (X) Errors (Y)
A 184 10
B 213 6
C 234 2
D 197 7
E 189 13
F 221 10
G 237 4
H 192 9
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