7th Class Mathematics Sample Paper Mathematics Sample Paper - 1

  • question_answer
    Find the arithmetic mean of first 6 natural numbers.

    Answer:

    First six natural numbers are 1, 2, 3, 4, 5, 6. Let \[\overline{X}\]denote their arithmetic mean. Then, \[\overline{X}=\frac{1+2+3+4+5+6}{6}=\frac{21}{6}=\frac{7}{2}=3.5\]          


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