Mean or average is defined as the sum of all observations divided by the number of observations.
Here the observations of the weights of cats are 5,15,13,14,12 and 5.
The sum of the weights of these cats are
= 5 + 15 + 13 + 14 + 12 + 5
= 64
Now as there are 6 cats , we divide the sum by 6
We get
Mean of the weights = 64/6 = 32/3 pounds
Hence the mean of the weights of cat is
[tex] \frac{32}{3} =10\frac{1}{3}=10.7 [/tex]
pounds
