Opal is collecting data on water levels in different parts of town. she notices that her sample data has a low-value outlier. which statement must be true?

Removing the outlier will decrease the spread of the graph of the data set.

Step-by-step explanation

removing the outliers takes away the extremes

angle 8= 120 degrees

angle 7= 60 degress

Step-by-step explanation:

So since it's a line, they will equal 180. So since angle 7 is half of 8 we need to a pair of numbers that add to 180. So you can find out that 120/2 is 60. Then 60+120=180