Which of the variables should be summarized using a proportion? (Choose all that apply)

Newborn weight (kg)

Body height (cm)

Body temperature (degree C)

Diagnosed diabetic (yes, no)

Gender (female, male)

Ethnicity (Hispanic, Non-Hispanic)

Age (years)

Age category (<=50 years old, >50 years old)

Rhesus (Rh) blood type (positive, negative)

Exam result (pass, fail)