find rhe class size class mark and lower limit of 100-120
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Answer:
Class mark of the class 100-120 is 110
Step-by-step explanation:
Given class 100-120
lower limit = 100,
upper limit = 120
\begin{gathered}class \: mark(x)\\ = \frac{lower\:limit - upper\:limit }{2}\\=\frac{100+120}{2}\\=\frac{220}{2}\\=110\end{gathered}
classmark(x)
=
2
lowerlimit−upperlimit
=
2
100+120
=
2
220
=110
Therefore,
Class mark of the class 100-120 is 110
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