The marks obtained by 10 students in a test are as follow...
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.
4.50
5.50
6.50
6.75
Correct answer is B
Mean ˉx = 3+7+6+2+8+5+9+1+4+1010
= 5510=5.50
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