The output from a statistical computer program indicates that the mean and standard deviation of a data set consisting of 200 measurements are $1,500 and $300, respectively.

a. What are the units of measurement of the variable of interest? On the basis of the units, what type of data is this, quantitative or qualitative?

b. What can be said about the number of measurements between $900 and $2,100? between $600 and $2,400?

between $1,200 and $1,800? between $1,500 and $2,100?