A dependent event occurs when the outcome of one event affects the outcome of another.
From the options provided:
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Picking 2 snacks from the pantry and replacing the first one before selecting another one: This is independent because replacing the first snack means the selection for the second snack is not affected by the first.
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Riding your bike, given that it is a sunny day: This event is dependent on the weather condition, but it does not represent two sequential events.
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Selecting a number from a set of number cards and putting it back because it was not an even number: This is independent as the card is put back, and the selection does not affect future selections.
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Picking 2 snacks from the pantry without looking and keeping the first one before selecting the second one: This is dependent because keeping the first snack affects the outcome of what you can pick next (as you now have one less available snack in the pantry).
Given these options, the statement that best represents a dependent event is:
Picking 2 snacks from the pantry without looking and keeping the first one before selecting the second one.