We can see from the given numbers in the data that there is an outlier. This means that mean or average is not a good measure of center. Also, there is no repeating number to give us the mode of the given. The answer is therefore, median is the only appropriate measure of center.
first you put this equation into y=mx+b form then you look at the slope of the equation. if both of the slopes are same then its parallel.
It’s 7 because it is on the exterior, and the other side, of the the parallel lines from 2.