In a large random data set following normal distribution, the ratio (% – McqOptions

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1.	In a large random data set following normal distribution, the ratio (%) of number of data points which are in the range of (mean ± standard deviation) to the total number of data points, is
A.	~ 50%
B.	~ 67%
C.	~ 97%
D.	~ 47%
Answer» C. ~ 97%

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