What is the best definition of "thinking at the margin"? *
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Deciding to use the entire piece of paper
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Deciding whether or to do or use one additional unit of resource
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Thinking about how to get the most work done
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Thinking about how to get the most out of a resource

thinking about how to get the most out of a resource

you see thinking at the margin here means, to be thinking to do something out of what you are provided, i.e. to get most out of a resource

the child will have heterozygous dominant chromosomes as characters of his father are dominant over the characters of his mother.

the child is heterozygous

idk i’m struggling too