A bag contains $6$ white balls and $4$ black balls. Two balls are drawn from the bag at random,

Question

A bag contains $6$ white balls and $4$ black balls. Two balls are drawn from the bag at random, without replacement. If a white ball is drawn, $2$ red balls are added to the bag. Draw a tree diagram to represent this information.[2] Find the probability that at least one of the balls drawn is white.[2] Find the probability that two white balls are drawn, given that at least one of the balls drawn is white.[2]

Accepted Answer

(ii)0.867 (iii)0.315

2024 SAJC H1 Q8

2024 SAJC H1 Q8