Question

.

Answer 1

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, $\text{Mean}=\dfrac{\text{Sum}}{\text{Number of observations}}$

$\text{Mean}=\dfrac{102}{11}=9.727\approx9.3$

Since, the number of observations = 11 .....odd number.

Therefore, Median = $\dfrac{11+1}{2}=6^{th}\ term=10$

Mode = Most repeated number = 13

Answer 2

Median ; 1
mean; 9.27
mode; 9