For a symmetrical distribution approximately 68% of the cases are included between ________?

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AX ̄ ̄ ̄ ̄−S and X ̄ ̄ ̄ ̄+S

BX ̄ ̄ ̄ ̄−3S and X ̄ ̄ ̄ ̄+3S

CX ̄ ̄ ̄ ̄−2S and X ̄ ̄ ̄ ̄+2S

DNone of these

Correct answer

A. X ̄ ̄ ̄ ̄−S and X ̄ ̄ ̄ ̄+S

Explanation

The correct answer is X ̄ ̄ ̄ ̄−S and X ̄ ̄ ̄ ̄+S.

For a symmetrical distribution approximately 68% of the cases are included between ________? - Answer and Explanation | Academy of Pakistan