What are some of the mottos that the animals adopt in animal farm?

In the beginning, one of the mottos accepted by the animals was, "Four legs good, two legs bad!" In the end, that motto got changed to, "Four legs good, two legs better!"

One of the Commandments originally was, "All animals are equal!" That got changed to, "All animals are equal, but some are more equal than others."

One given by Old Major in the beginning, was "All men are enemies. All animals are comrades." Another one he gave was: "Whatever goes upon two legs is an enemy. Whatever goes on four legs, or has wings, is a friend." 

0.63

Explanation:

Given that:

baseline pulse rates in their worms = 9, 8, 7, 8, and 8 pulses per minute.

What is the standard deviation for the measurements?

Formula for solving standard deviation (σ) =

where;

N = number of people in the population

= individual entity in the population

x' = population mean

Our data given includes: 9,8,7,8,8 only

re-arranging what we have above in increasing order; we have:

7,8,8,8,9

∴ N = 5

x'(population mean) =

x'(population mean) =

x'(population mean) =

x'(population mean) = 8

                       (-x')                  (-x')²

     7                   (7-8) = -1              (-1)²=1

     8                   (8-8) = 0             (0)²=0

     8                   (8-8) = 0             (0)²=0

     8                   (8-8) = 0             (0)²=0

    9                   (9-8) = 1               (1)²=1            

= 40         = 0     = 2

(σ) =

(σ) =

(σ) =

(σ) = 0.63248

(σ) = 0.63

∴  the standard deviation for the measurements = 0.63