Suppose you were to collect data for the following pair of variables, drivers: blood alchohol level,...
Suppose you were to collect data for the following pair of variables, drivers: blood alchohol level, reaction time. You want to make a scatterplot. Which variable would you use as the explanatory variable?
- blood alchohol level
- reaction time
Which variable would you use as the response variable?
- blood alchohol level
- reaction time
Would you expect to see a positive or negative association?
- positive
- negative
- neither
Homework Answers
since we assume that amount of blood alchohol level will affect the reaction time
explanatory variable : blood alchohol level
response variable :reaction time
since we expect that higher the amount of alcohol, higher should be reaction time, therefore we expect
a positive association
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