Before Bob's first pick, there are 3 white balls and 5 black balls.

The probability of picking a white ball is 3/8.

After that, there are 2 white balls and 5 black balls.

The probability to pick another white balls is 2/7

Since the picks depend on each other we can multiply them to get the final probability of (3/8)*(2/7) = 6/56 = 3/28
spam fails_task lang_mismatch pii not_appropriate hate_speech sexual_content quality toxicity humor helpfulness creativity violence