For each of the following variables, determine whether the variable is categorical or numerical. If the variable

Question:

For each of the following variables, determine whether the variable is categorical or numerical. If the variable is numerical, determine whether the variable is discrete or continuous. In addition; determine the measurement scale.
a. Number of cell phones in the household
b. Monthly data usage (in MB)
c. Number of text messages exchanged per month
d. Voice usage per month (in minutes)
e. Whether the cell phone is used for email