A family has a baby girl.

Will this affect the chances of their next baby being a girl?

No

Yes

A coin is tossed and lands on tails.

Will this affect the chances of the coin landing on tails in the next toss?

Valerie owns $9$9 red shirts and $9$9 blue shirts.

She randomly chooses a shirt for the day, and she gets a red shirt.

At the end of the day, she puts it into the washing basket.

In a bag, there are $3$3 yellow marbles and $4$4 green marbles.

A marble is randomly selected from the bag and it turns out to be yellow.

The marble is not put back into the bag.