Mean
add up numbers and divide by how many there are
(1+1+5+3+6+6)/7=3 and 2/3
If we were to draw a best fit line, the y-interest would be near 15, and the slope would be negative.
In the options given, the slope is either -3 or -13. If we imagine a line through the plotted points, the rise would be about 15 while the run would be about 5. This means the slope is about -3.
The best answer is y = -3x + 15
The first one is the answer
