A continuous variable can take on any value within a given range and be subdivided into finer units. Weight is continuous because it can, in principle, be recorded with decimal precision such as 55.2 or 55.23 kilograms, making it suitable for many statistical techniques that assume continuity.
Option A:
This option refers to the number of students, which is a discrete variable because it can only take whole number values; you cannot have 30.5 students.
Option B:
This option correctly identifies weight measured on a metric scale as continuous; it can vary in very small increments and be represented by real numbers.
Option C:
This option describes type of school management, which is a categorical (nominal) variable rather than a continuous one.
Option D:
This option refers to gender categories such as male or female, which are also nominal and not continuous numerical measures.
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