Math miscellaneousEasy
Question
In an experiment with 15 observations on x, then following results were available:
Σ x2 = 2830, Σx = 170
One observation that was 20 was found to be wrong and was replaced by the correct value
30. Then the corrected variance is
Σ x2 = 2830, Σx = 170
One observation that was 20 was found to be wrong and was replaced by the correct value
30. Then the corrected variance is
Options
A.78.00
B.188.66
C.177.33
D.8.33
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