Answer:
The probability of picking a card with "4 or more" siblings is 10%.
To calculate the probability, you need to add up the number of cards with "4 or more" siblings and divide by the total number of cards.
There are 30 cards in total, and 3 of them have "4 or more" siblings.
So, the probability of picking a card with "4 or more" siblings is:
P(4 or more) = 3/30 = 0.1 = 10%