Answer: Mean = 9.3
Median = 10
Mode = 13
Step-by-step explanation:
The given data : 15, 13, 9, 9, 7, 1, 11, 10, 13, 1, 13
First arrange then in ascending order.
1, 1, 7, 9, 9, 10, 11, 13, 13, 13, 15
Now, ![\text{Mean}=\dfrac{\text{Sum}}{\text{Number of observations}}](https://tex.z-dn.net/?f=%5Ctext%7BMean%7D%3D%5Cdfrac%7B%5Ctext%7BSum%7D%7D%7B%5Ctext%7BNumber%20of%20observations%7D%7D)
![\text{Mean}=\dfrac{102}{11}=9.727\approx9.3](https://tex.z-dn.net/?f=%5Ctext%7BMean%7D%3D%5Cdfrac%7B102%7D%7B11%7D%3D9.727%5Capprox9.3)
Since, the number of observations = 11 .....odd number.
Therefore, Median = ![\dfrac{11+1}{2}=6^{th}\ term=10](https://tex.z-dn.net/?f=%5Cdfrac%7B11%2B1%7D%7B2%7D%3D6%5E%7Bth%7D%5C%20term%3D10)
Mode = Most repeated number = 13