what is the use of class mark in Chapter statistics ?
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To find mean and use class mark formula
This method is so easy to find mean
This method is so easy to find mean
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4
class mark =upper limit+lower limit /2
class mark is used in all three methods of mean
assumed mean method
step deviation method
direct mean method
hope it helps
class mark is used in all three methods of mean
assumed mean method
step deviation method
direct mean method
hope it helps
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