In an experiment with 15 observations on x , the following results were available: x^ 2…
Mathematics · JEE Main · NTA Exams — Statistics and Probability
In an experiment with 15 observations on x, the following results were available:
\(\sum x^{2}=2830, \sum x=170\)
One observation, 20, was found to be wrong and was replaced by the correct value 30 . Then the corrected variance is _______.
\(\sum x^{2}=2830, \sum x=170\)
One observation, 20, was found to be wrong and was replaced by the correct value 30 . Then the corrected variance is _______.
- 188.66
- 177.33
- 8.33
- 78.00
Answer
(B) 177.33
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