You draw three tickets at random with replacement from the box. What is the chance that you draw at least one odd number? [Hint: A direct calculation of the chance might be hard, so Pascal and Fermat would subtract the chance of its opposite from 100%.]

You draw three tickets at random without replacement. What is the chance that you draw at least one odd number?

Please help!

You draw three tickets at random without replacement. What is the chance that you draw at least one odd number?

Please help!

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