Q. 10
In a frequency di
Answer :
Given: number of classes = 12,
Class width = 2.5, and
Lowest class boundary = 8.1
Upper class is given by,
Upper class boundary = Lower class boundary + (width × number of classes)
Substituting values,
⇒ Upper class boundary = 8.1 + (2.5 × 12)
⇒ Upper class boundary = 8.1 + 30 = 38.1
Hence, upper class boundary is 38.1
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