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, [tex]\text{Mean}=\dfrac{\text{Sum}}{\text{Number of observations}}[/tex]
[tex]\text{Mean}=\dfrac{102}{11}=9.727\approx9.3[/tex]
Since, the number of observations = 11 .....odd number.
Therefore, Median = [tex]\dfrac{11+1}{2}=6^{th}\ term=10[/tex]
Mode = Most repeated number = 13
