6 The positive square root of the average of squares of deviations of the values from mean is called the $$ \begin{array}{ll} ext { (a) range. } & ext { (b) arithmetic mean. } \ ext { (c) standard deviation. } & ext { (d) mode. }\end{array} $$

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6 The positive square root of the average of squares of deviations of the values from mean is called the $$ \begin{array}{ll}	ext { (a) range. } & 	ext { (b) arithmetic mean. } \ 	ext { (c) standard deviation. } & 	ext { (d) mode. }\end{array} $$

Rogers Peters · Accepted Answer

الجذر التربيعي الإيجابي لمتوسط مربعات الانحرافات عن المتوسط يُسمى الانحراف المعياري.

6 The positive square root of the average of squares of deviations of the values from mean is called the \( \begin{array}{ll}\text { (a) range. } & \text { (b) arithmetic mean. } \\ \text { (c) standard deviation. } & \text { (d) mode. }\end{array} \)

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6 The positive square root of the average of squares of deviations of the values from mean is called the \( \begin{array}{ll}\text { (a) range. } & \text { (b) arithmetic mean. } \\ \text { (c) standard deviation. } & \text { (d) mode. }\end{array} \)

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