<prompt> Data of happy, moderately happy and very happy is-NominalRatioOrdinalInterval  <response>: Scales can be: Qualitative: Categorical scales: Nominal : eg: names of countries . Dichotomous : eg: yesno, presenceabsence. Ordinal : severity of disease: mildmoderatesevere.eg: staging of cancer, kuppusamy socioeconomic class. Quantitative: Metric scales: Interval Ratio 