Question: Q2)Find the standard deviation of the following sample data. * Grade 50-59 60-69 70-79 80-89 90-100 2 7 9 12 8

Q2)Find the standard deviation of the following sample data. * Grade 50-59

Q2)Find the standard deviation of the following sample data. * Grade 50-59 60-69 70-79 80-89 90-100 2 7 9 12 8

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