• Heart Rate
• Age Group (1 = 60 to 70 years; 2 = 71 to 80 years; 3 = 81+ years)
• Body Weight
• Environment (0 = nursing home; 1 = living with family)
• Height
Recognizing the measurement scale of the data collected on each variable is important because the type of data dictates the appropriate data summary methods and statistical procedures.
Which variable(s) in the data set are measured using a nominal scale?

Environment
None of the variables
Age Group
Environment and Age Group