human
Calculate the probability of two dependent events occurring without drawing a tree diagram There are \( 5 \) red balls and \( 4 \) yellow balls in a cup ![A cup with 5 red and 4 yellow balls in it. All of the balls are the same size.]() 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? \( \frac{5}{9} \)
gpt
Does not reduce the denominator when an item is not replaced in a probability question