{1, 1, 1, 2, 2, 3, 3, 3, 3, 3, 4, 5}

Lizzy later adds a fish measuring 9 inches to the tank.

How are the mean and median lengths of the fish affected?

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The mean length
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.increases
.
decreases
.
stays the same
.
. The median length
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increases
.
decreases
.
stays the same
.
.