What is the class mark of the class interval –(80 – 90)?
(a) 82.5
(b) 90
(c) 80
(d) 85
What is the class mark of the class interval –(80 – 90)?
(a) 82.5
(b) 90
(c) 80
(d) 85
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Last Activity: 2 Years ago
Last Activity: 2 Years ago