Mean of a discrete frequency distribution (Weighted AM: each value weighted by its frequency)
jee-mainjee-advanced
Weighted AM: each value weighted by its frequency
What each symbol means
| Symbol | What it stands for |
|---|---|
| N | \sum f_i |
| f_i | Frequency of x_i |
When to use this
x_i are distinct class marks or values; N total count.