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Suppose onions have an average weight of $13$ ounces with a standard deviation of $2.3$ ounces.

What is the mean weight of a bag containing $4$ onions?

$52\text{ ounces}$

$13\text{ ounces}$

$26\text{ ounces}$

$119.6\text{ ounces}$

$4.6\text{ ounces}$