Marks | 1 | 2 | 3 | 4 | 5 |
Frequency | 2 | 2 | 8 | 4 | 4 |
The table above show the marks obtained in a given test.
Find the mean mark
Mark(χ) | f | fχ |
1 | 2 | 2 |
2 | 2 | 4 |
3 | 8 | 24 |
4 | 4 | 16 |
5 | 4 | 20 |
∑f = 20 | ∑fχ = 66 |
\(Mean = \frac{\sum fx}{\sum f}\)
= \(\frac{66}{20}\)
= 3.3
There is an explanation video available below.
Contributions ({{ comment_count }})
Please wait...
Modal title
Report
Block User
{{ feedback_modal_data.title }}