Prejudice is making up your mind about someone based on only superficial investigation. If you need to hire an intelligent person, and therefore you refuse to even interview blacks because blacks have on average lower IQs, this is a form of prejudice.
The previous example is an example of both racism and prejudice. But it is possible to be racist without being prejudiced.
Here is the definition of racism:
the belief that different races possess distinct characteristics, abilities, or qualities, especially so as to distinguish them as inferior or superior to one another.
If you know someone who exhibits behaviors consistent with stereotypes of his race, then to say these behaviors are a result of his race would be racist. But it would not be prejudiced.
[–]Gravi 1 insightful - 2 fun1 insightful - 1 fun2 insightful - 1 fun2 insightful - 2 fun - (0 children)
[–]send_nasty_stuff 1 insightful - 1 fun1 insightful - 0 fun2 insightful - 0 fun2 insightful - 1 fun - (2 children)
[–]fschmidt 1 insightful - 1 fun1 insightful - 0 fun2 insightful - 0 fun2 insightful - 1 fun - (1 child)
[–][deleted] 2 insightful - 1 fun2 insightful - 0 fun3 insightful - 0 fun3 insightful - 1 fun - (0 children)
[–]Cornfed 2 insightful - 1 fun2 insightful - 0 fun3 insightful - 0 fun3 insightful - 1 fun - (2 children)
[–]fschmidt 2 insightful - 1 fun2 insightful - 0 fun3 insightful - 0 fun3 insightful - 1 fun - (1 child)
[–]Cornfed 2 insightful - 1 fun2 insightful - 0 fun3 insightful - 0 fun3 insightful - 1 fun - (0 children)