(C) Mid marks of the classes
Clarification:
We know,
![\[di\text{ }=\text{ }xi\text{ }\text{ }a\]](https://www.learnatnoon.com/s/wp-content/ql-cache/quicklatex.com-e7a45ef2fb301c40c992d89b30389639_l3.png "Rendered by QuickLaTeX.com")
Where,
xi are information and ‘a’ is the expected to be mean
In this way, di are the deviations from of mid – places of the classes.
Thus, the choice (C) is right
Choose the correct answer from the given four options: 1. In the formula For finding the mean of grouped data di’s are deviations from a of (A) Lower limits of the classes (B) Upper limits of the classes (C) Mid points of the classes (D) Frequencies of the class marks
Choose the correct answer from the given four options: 1. In the formula For finding the mean of grouped data di’s are deviations from a of (A) Lower limits of the classes (B) Upper limits of the classes (C) Mid points of the classes (D) Frequencies of the class marks