The data is shown below
8, 11, 14, 14, 13, 15, 9

What is the median?

13

Step-by-step explanation:

arrange the numbers in order

8, 9, 11, 13, 14, 14, 15

find the number physically in the middle

The median is 13.

Step-by-step explanation:

The way you can find median is by putting the numbers in order from smallest to greatest, then finding the middle point. If the number of data points is odd, the median is the middle data point in the list. If the number of data points is even, the median is the average of the two middle data points in the list. Using this explanation, you can put your numbers in order.

8, 9, 11, 13, 14, 14, 15

As you can see, 13 is the middle number in the list.

the image of (6, 9) under a dilation is (4, 6). the scale factor is

reduce the friction between its moving parts

step-by-step explanation:

in fact, by reducing the friction between the moving parts of the machine, it is possible to reduce the energy wasted due to this friction; therefore, more input energy is converted into useful work, and this will improve the efficiency of the machine.