Question

Please help me with this PROBABILITY question! I'm really stuck and would really appreciate your help.

Please don't post nonsense answers and I'd love it if you could add working out.
Thanks :))

Answer 1

Answer: The probability of picking a black bead is 4/7, because there are 4 black beads out of seven. But if you took the first black bead out of the equation then the probability is now 3/7.