SOLUTION: There are 4 different blood types, A, B, BA, and O. Blood can also? be Rh+ andRh-. Finally, a donor canbe male or female. How many different ways can a donor have his or her bloo

Algebra ->  Algebra  -> Permutations -> SOLUTION: There are 4 different blood types, A, B, BA, and O. Blood can also? be Rh+ andRh-. Finally, a donor canbe male or female. How many different ways can a donor have his or her bloo      Log On

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Question 552455: There are 4 different blood types, A, B, BA, and O. Blood can also? be Rh+ andRh-. Finally, a donor canbe male or female. How many different ways can a donor have his or her blood labeled?
Answer by neatmath(300) About Me  (Show Source):
You can put this solution on YOUR website!

This is an example of the counting principle:

The Fundamental Counting Principle states that if event M can occur in m ways and event N can occur in n ways,

then event M followed by event N can occur in m%2An ways.

This can be extended to more than 2 events.

In this case, we have 3 events:

blood type, rh, and gender.

So we just need to multiply the number of possibilities for each together:

L will stand for the number of possible ways the blood can be labeled.

L=type%2Arh%2Agender

L=4%2A2%2A2

L=16

Thus, given our labeling system above,

there are 16 different ways a person's blood could be lableled.

I hope this helps! :)

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