hello
to solve this question, we need to know that 1 dozen contains 12 eggs
so, we can simply multiply our values by 12
average weight of a dozen eggs
[tex]\text{weight}=57\times12=684g[/tex]standard deviation of a dozen eggs
[tex]S\mathrm{}D=5.1\times12=61.2g[/tex]from the calculations above, the average weight of a dozen eggs is equal to 684g and the standard deviation of a dozen eggs is equal to 61.2g