Suppose For 40 Observation, The Variance Is 50. If All The Observation Are Increased By 20, The Variance Of These Increased Observation Will Be-----?

50

50-20=30

50/20

70

Suppose For 40 Observation, The Variance Is 50. If All The Observation Are Increased By 20, The Variance Of These Increased Observation Will Be-----?

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