Mean value is calculated to be 35.
Explanation:
Mean value is generally defined as the central tendency of the given data.
It is found by dividing the sum of all the given data by the number of items.
![\text { Mean }=(30+31+32+33+34+35+36+37+38+39+40)/(11)](https://img.qammunity.org/2021/formulas/mathematics/middle-school/e4qeaxm0rftbn3romeb404ck3qmmzsnu13.png)
So the mean value was found by dividing 385 by 11 as,
![\text { Mean }=(385)/(11)=35](https://img.qammunity.org/2021/formulas/mathematics/middle-school/a9f9mi6y1ws6le1hkoo9vrdbg0moy21jgb.png)
It was found as 35.