Answer:
12083.929
Step-by-step explanation:
First step: find the mean of the data.
mean = 3+33+303+233+3+73+83+63
8
= 794
8
= 99.25
Second step: Now we calculate each dog's difference from the Mean.
Example : 3–99.25=96.25
Answer: (-96.25)+(-66.25)+203.75+133.75+(-96.25)+(-26.25)+(-16.25)+(36.25)
Third step: To calculate the Variance, take each difference, square it, and then average the result.
s² = (-96.25)²+(-66.25)²+203.75²+133.75²+(-96.25)²+(-26.25)²+(-16.25)²+(36.25)²
8–1
= 9264.063+4389.063+41514.063+17889.063+9264.063+689.063+264.063+1314.063
7
= 84587.5
7
= 12083.929
Variance Formula:
Variance = s² =Σ(xi− x )²
n−1
