Respuesta :
the outlier is 28 because there is a big gap between 28 and 61
to find the mean add all the numbers together then
divide the number of values added
to find the mean add all the numbers together then
divide the number of values added
Answer:
A)28
B)67.45
C)71.4
Step-by-step explanation:
We are given the following data:
68,63,67,66,65,87,69,61,86,82,28
a) The outlier in the data is 28 as we can clearly see all the data points in the given data set ranges from 60 to 88 but their is a single entry of 28 which is different.
b) [tex]Mean = \frac{\text{Sum of all observations}}{\text{Total number of observations}}\\\\ = \frac{68+63+67+66+65+87+69+61+86+82+28}{11}\\\\=\frac{742}{11} = 67.45[/tex]
c)[tex]Mean = \frac{\text{Sum of all observations}}{\text{Total number of observations}}\\\\ = \frac{68+63+67+66+65+87+69+61+86+82}{10}\\\\=\frac{714}{10} = 71.4[/tex]
