Question

The value of variable for an entire population. usually cannot be found directly

Answer 1

Parameter

Step-by-step explanation:

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Answer 2

We cannot directly know the value of a variable and parameters of the whole population mainly because of its size. A small sample can be used to determine the value of a variable because data can be easily extracted and studied. We can manage to understand a small sample that can represent the population rather than the whole population itself.