Answer:
Mean = 8
Mode = 12
Median = 7.5
Standard deviation = 3.07
Step-by-step explanation:
We are given the following sample in the question:
6, 12, 7, 8, 4, 5, 12, 10
Formula:
where
are data points,
is the mean and n is the number of observations.
Sum of squares of differences = 66
Mode is the most frequent observation of data.
Mode = 12
Since it repeats two times.
Sorted data: 4, 5, 6, 7, 8, 10, 12, 12
![\text{Median} = \dfrac{4^{th}+5^{th}}{2} = \dfrac{7+8}{2}=7.5](https://tex.z-dn.net/?f=%5Ctext%7BMedian%7D%20%3D%20%5Cdfrac%7B4%5E%7Bth%7D%2B5%5E%7Bth%7D%7D%7B2%7D%20%3D%20%5Cdfrac%7B7%2B8%7D%7B2%7D%3D7.5)