In the assumed mean method, d equals:
Ax times a
Bx over a
Cx minus a
Dx plus a
Answer & Solution
Correct answer: C. x minus a
1. Pick an assumed mean a near the centre.
2. Subtract it from each x.
3. The mean is a plus the mean deviation.
_Source: NCERT Class 10 Mathematics, Chapter 14, Statistics._
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