Question:medium

Calculate the arithmetic mean (approximately) from the following data

Show Hint

For grouped data, \[ \boxed{ \bar{x}=\frac{\sum fx_i}{\sum f} } \] where \(x_i\) is the class mark (midpoint of each class interval).
Updated On: Jul 15, 2026
  • \(31.63\)
  • \(30.57\)
  • \(32.57\)
  • \(31.65\)
Show Solution

The Correct Option is C

Solution and Explanation

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