The marks obtained by 10 students in a test are as follows: 3, 7, 6, 2, 8, 5, 9, 1, 4 and 10. Find the mean mark.
Answer Details
To find the mean mark, we add up all the marks and divide by the number of students.
Adding up all the marks, we get:
3 + 7 + 6 + 2 + 8 + 5 + 9 + 1 + 4 + 10 = 55
There are 10 students, so we divide the sum of the marks by 10:
55 / 10 = 5.50
Therefore, the mean mark is 5.50.
Hence, the correct option is: 5.50.