Batch of 15 students 5 students failed the marjs of 10 students passed were 9,6,7,8,8,9,6,5,4,7 what were the median marks of all 15 students

assuming that those who failed scored less than 4, then the median is the 8th score from the bottom: 6

To find the median marks of all 15 students, we need to arrange the marks in ascending order.

The given marks are: 9, 6, 7, 8, 8, 9, 6, 5, 4, 7.

First, let's arrange the marks in ascending order: 4, 5, 6, 6, 7, 7, 8, 8, 9, 9.

Now let's identify the median of the marks. Since there are 15 students, the middle mark would be the 8th mark. In this case, the median is 8.

Therefore, the median marks of all 15 students is 8.