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 telephones per household
b. Length (in minutes) of the longest telephone call made in a month
c. Whether someone in the household owns a Wi-Fi-capable cell phone
d. Whether there is a high-speed Internet connection in the household