What is the mean of the following data? Class Interval 10 - 20 20 - 3 – McqOptions

MCQOPTIONS

1.	What is the mean of the following data? Class Interval 10 - 20 20 - 30 30 - 40 40 - 50 50 - 60 Frequency812161113
A.	12
B.	23.4
C.	36.5
D.	42.7
Answer» D. 42.7

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