Near a certain exit of a large warehouse, the probabilities are 0.23 and 0.24,
respectively, that a truck stopped at a roadblock will have faulty brakes or badly worn
tires. Also, the probability is 0.38 that a truck stopped at the roadblock will have faulty
brakes and/or badly worn tires. What is the probability that a truck stopped at this
roadblock will have faulty brakes as well as badly worn tires? [6 marks]
(ii) Use a tree diagram to find the sample space for the gender of three children in a famil
