I want to combine these two queries to get same result.

Here is the code:

```
SELECT 
    Rollnumber, PapersetName,
    COUNT(*) as 'Wrongattempt'
FROM Student_data
WHERE Qs = 0
GROUP BY Rollnumber, PapersetName

SELECT 
    Rollnumber, PapersetName,
    COUNT(*) as 'Correct'
FROM Student_data
WHERE Qs = 1
GROUP BY Rollnumber, PapersetName

```