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If a sample has '$n$' observation $x_1, x_2 ..... x_n$ with '$m$' constraints on these values then degree of freedom of sample statistic is: |
$\frac{n -m}{2}$ $\frac{n + m}{2}$ $n + m$ $n-m$ |
$n-m$ |
The correct answer is Option (4) → $n-m$ ** Degree of freedom represents the number of independent observations available. If there are $n$ observations but $m$ constraints linking them, then only $n-m$ observations are free to vary. |
