MCQ
In the formul $\bar{\text{x}}=\text{a+h}\big(\frac{\sum\text{f}_\text{i}\text{u}_\text{i}}{\sum\text{f}_\text{i}}\big)$ a stands for :
- ✓Assumed mean
- BClass size
- CClass mark
- DMean
✓
Answer
Correct option: A.
Assumed mean
In the formula $\bar{\text{x}}=\text{a+h}\big(\frac{\sum\text{f}_\text{i}\text{u}_\text{i}}{\sum\text{f}_\text{i}}\big)$
$a\ ’$ stands for Assumed Mean
i.e., assumed mean value is the mid value $(\text{x}_\text{i})$ of class intervals of a set of grouped data.
$a\ ’$ stands for Assumed Mean
i.e., assumed mean value is the mid value $(\text{x}_\text{i})$ of class intervals of a set of grouped data.
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