QuestionS7:-Among all the measures of dispersion, standard deviation is best. Why?
‘Acit gives more weightage to extreme values
പിട calculation is not easy
Colt is least affected by fluctuations of sampling
പിട based on all the observations
Correct Answer: Option-C
‘QuestionS8:-Calculate the arithmetic mean of the marks obtained by 12 students of a class for an exam. The marks obtained are :
40, 35, 42, 50, 48, 30, 31, 37, 45, 28, 20, 25
....
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