Subtracting the lowest score in a data set from the highest is the appropriate way to calculate the
a. range
b. median
c. standard deviation
d. mode user: which of the following is not commonly studied in psychology?
a. age
b. sleep patterns
c. aggression
d. human origins

When we're substracting the lowest score in a dataset from the highest score in the dataset, we're basically calculating the range of the dataset. This tells us wher all the values of a dataset will fall in. 

What psychology commonly studies is age, sleep patterns and aggression. 

Human origins are therefore not the answer.

The correct answers are a) range and d) human origins.