Setting a seed

What is the purpose of setting a seed, for example, using the set.seed function in the first line of the previous exercise?

50 XP

Without it, your code will not run.
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For replicability.
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Computers by default generate pseudo-random numbers, but setting a seed will make it truly random.
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Computers by default generate truly random numbers that are unpredictable, but setting a seed will make it pseudo-random and thus predictable.
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