human
Calculate the probability of two dependent events occurring without drawing a tree diagram There are \( 4 \) red balls and \( 3 \) yellow balls in a cup. ![The image shows the cup with the 4 red balls and 3 yellow balls.]() Kate picks a yellow ball out and does not replace it.

She then has a second pick.
What is the probability the second pick is a red ball? \( \frac{4}{7} \)
gpt
Does not reduce the denominator when an item is not replaced in a probability question