Posted by **Rmz** on Saturday, January 9, 2010 at 4:13pm.

in a subdivision, 67 perecent of the homes have detached garages, 32 perecent have a patio, and 13 percent have both. What is the probability that a house has a patio if you know that it has a detached garage?

would it be 32/67?

- math 157 -
**Marth**, Saturday, January 9, 2010 at 4:18pm
Good guess. Only 13% have BOTH, so it is actually 13/67.

- math 157 -
**PsyDAG**, Sunday, January 10, 2010 at 5:28pm
If 13% (.13) have *both* detached garages and patios, isn't that the probability?

Please only post your questions once. Repeating posts will not get a quicker response. In addition, it wastes our time looking over reposts that have already been answered in another post. Thank you.

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