Dr. Rogan calculates a correlation coefficient of -0.98 between the amount of marijuana smoked and short-term memory capacity. From this correlation coefficient, Dr. Rogan can conclude that marijuana consumption and short-term memory capacity are negatively correlated.

Question

Quizplus · Accepted Answer

The correlation coefficient of -0.98 indicates a strong negative correlation between marijuana consumption and short-term memory capacity. A negative correlation means that as one variable (in this case, marijuana consumption) increases, the other variable (short-term memory capacity) decreases. Therefore, it is accurate to conclude that marijuana consumption and short-term memory capacity are negatively correlated.

Dr Rogan Calculates a Correlation Coefficient of -0