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

50

--20 = 30

70

/20

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

10th-class-mcqs-all-subjects9th-class-mcqs-all-subjects11th-class-mcqs-past-papers12th-class-macqs-past-paperscss-islamiat-past-papers-mcqsnts-online-test-preparation