Homework Help: statistics

Posted by overwhelmed on Tuesday, June 21, 2011 at 10:09am.

I am having trouble knowing if I add or multiply with this problem:

Male Female
Age 19 and under 4746 4517
Age 20 1625 1553
Age 21 1679 1627

Choose one driver at random. Find the probability that the driver is Male and 19 or under.

Now, do I find the product of the number of males and the number of drivers 19 or under? Or do I add and subtract:

statistics - PsyDAG, Tuesday, June 21, 2011 at 10:39am
If these are the number of subjects, then you want 4746/grand total = ?

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