The main drawback to using secondary data is that ___________________ ____.
A) it may be expensive to obtain the data
B) the subjects of interest need to be directly observed to collect the data
C) the subjects of interest are paid to provide the data
D) you have no control over how the data were collected
Question 2
When all of the data values in the sample are the same, the sample standard deviation equals 1.0.
Indicate whether the statement is true or false