Elizabeth lives in San Francisco and works in Mountain View. In the morning, she has
3
33 transportation options (take a bus, a cab, or a train) to work, and in the evening she has the same
3
33 choices for her trip home.
If Elizabeth randomly chooses her ride in the morning and in the evening, what is the probability that she'll use a cab exactly one time?

Click an item in the list or group of pictures at the bottom of the problem and, holding the button down, drag it into the correct position in the answer box. release your mouse button when the item is place. if you change your mind, drag the item to the trashcan. click the trashcan to clear all your answers. place the indicated product in the proper location on the grid. (3 - c 2 d)(4 - 4c 2 d)