PUMPA - SMART LEARNING
எங்கள் ஆசிரியர்களுடன் 1-ஆன்-1 ஆலோசனை நேரத்தைப் பெறுங்கள். டாப்பர் ஆவதற்கு நாங்கள் பயிற்சி அளிப்போம்
Book Free DemoFind the mean marks of the students for the following distribution:
Marks | Number of Students |
\(0 and above\) | \(80\) |
\(10 and above\) | \(77\) |
\(20 and above\) | \(72\) |
\(30 and above\) | \(65\) |
\(40 and above\)
|
\(55\) |
\(50 and above\) | \(43\) |
\(60 and above\) | \(28\) |
\(70 and above\) | \(16\) |
\(80 and above\) |
\(10\)
|
\(90 and above\) | \(8\) |
\(100 and above\) | \(0\) |
Answer:
The mean mark of the student is .
[Note: Enter the answer in to two decimal number.]