The marks of 7 students in a unit test are given below :
9, 10, 7, 6, 9, 3, 5
Mean of the data is :
Answer & explanation
Correct answer: option 3
The correct answer is Option (3) → 7
The mean is the sum of all the observations divided by the number of observations.
Sum of the marks \(=9+10+7+6+9+3+5=49\)
Number of students \(=7\)
Mean \(\displaystyle =\frac{49}{7}=7\)