I'm suck on this one. i will mark ! what effect will the outlier have on the mean of the data if the outlier is excluded. explain by showing the math and explaining in words. 5, 8, 9, 7, 10, 6, 25

If you took out the outlier, (25) the mean would change because to find the mean you add the numbers together and then divide the total you get by the amount of numbers presented. With the outlier: 70 divided by 7 = 10 
Without the outlier: 45 Divided by 6 = 7.5. As you can see, there is a difference of 2.5 if you take the outlier away.

                               Hope this helps, and good luck!