Suppose that there are 3 variables in a data set. Approximately how many data records are required using a rule of thumb discussed in the textbook?
A) 30 to 45
B) 20 to 30
C) 45 to 60
D) 50 to 100

Question

Quizplus · Accepted Answer

According to the rule of thumb discussed in the textbook, at least 10 data records are required for each variable. Therefore, for three variables, we would need at least 30 data records. The range given in option A (30 to 45) is the closest approximation to this.

Suppose That There Are 3 Variables in a Data Set