railway RRB NTPC Mock Test Series 2024-25 (CBT 1 + CBT 2) Quantitative Aptitude Standard Deviation

The weights (in kg) of 10 animals are 75, 77, 77, 79, 79, 81, 81, 83, 85, and 85. What is the standard deviation of the weights of the animals?

1

4 kg

2

2.33 kg

3

3.25 kg

4

7 kg

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