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The mean and standard deviation of marks obtained by 50 students of a class in three subjects, mathematics, physics and chemistry are given below : SubjectMathematicsPhysicsChemistryMean423240.9Standard deviation121520 Which of the three subjects shows the highest variability in marks and which shows the lowest ? |
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Answer» The mean and standard deviation of marks obtained by 50 students of a class in three subjects, mathematics, physics and chemistry are given below : SubjectMathematicsPhysicsChemistryMean423240.9Standard deviation121520 Which of the three subjects shows the highest variability in marks and which shows the lowest ? |
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