data with corresponding weights – Discussion Forum

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Virat

Asked: October 3, 2026In: Class 9 Maths

Given some data with corresponding weights, how would the weighted average change if all the weights are doubled? If required, experiment with some data. What do you observe? Justify your answer using algebra.

The weighted average does not change. Doubling every weight scales both the numerator and denominator by 2, which cancel out completely, keeping the overall average strictly identical. Class 9 Ganita Manjari Part 2 All Chapter Solutions Class 9 Ganita Manjari Part ...