A realtor sells houses in three different neighborhoods in the city-A, B and C. He sells only ranch style homes and two-story homes.
Last year, 25% of his sales were in neighborhood A, while neighborhood B made up 60% and neighborhood C was 15% of the sales.
Only 15% of the houses in neighborhood A were ranches, compared with 45% for neighborhood B and 55% for neighborhood C.
Suppose we randomly select one of the homes he sold.
(a) Use the half sheet of paper: Draw a tree diagram to represent this chance process.
Show all the probabilities, there should be 6 in the end column.
Turn it in to me when your quiz is finished.
(b) Then answer: What's the probability that the home is in area A and is two-story?
Enter your answer as a decimal proportion, keep all decimal places.