Exercise 3| Conditional Probability| Worked Example

In this video, I'll help you break down the complex question below into manageable parts, analyze it carefully, and guide you to a clear solution. An electrical engineer at GRIDCO is given two separate toolboxes to keep his working tools. The first toolbox has 4 white fuses and 3 black fuses, and the second toolbox has 3 white fuses and 5 black fuses. Suppose the engineer select a fuse from the first toolbox and placed unseen in the second toolbox. What is the probability that: (a) the fuse drawn from the second toolbox is black. (b) the fuse drawn from the second toolbox is white. (c) both fuses are of the same color? (d) one is white.