First put your numbers in order from least to greatest (These are negative numbers so that means that the smallest number is the one farthest away from zero)
-49, -43, -39, -18, -14, -12, -9
Mean is adding all the numbers together and dividing the sum by how many numbers there are in the data set
-49 + (-43) + (-39) + (-18) + (-14) + (-12) + (-9) = -184
There are seven numbers so divide -184 by 7:
-184 ÷ 7 ≈ 26.29
Median is the number in the middle. Take away the smallest number and the biggest number on each layer until you get to the middle
-49, -43, -39, -18, -14, -12, -9
-43, -39, -18, -14, -12
-39, -18, -14
-18 <-------------------Median
Mode is whatever number appears the most often in the data. In this case all the numbers appear only once so there is no mode
Range is subtracting the largest number by the smallest number
-9 - (-49) = 40
2. Data in order
13, 13, 13, 15, 21, 23, 25, 37
Outlier is the number that is a number that is rather far from the other number in the data
a. In this case the outlier is 37
b. 13 + 13 + 13 + 15 + 21 + 23 + 25 + 37 = 160
160 ÷ 8 = 20
c. 13 + 13 + 13 + 15 + 21 + 23 + 25 = 123
123 ÷ 7 = 17.57
Hope this helped!
~Just a girl in love with Shawn Mendes
