Question 550761: Can someone help me with this question. It is confusing to me.
Thank you
A mini license plate for a toy car must consist of two numbers followed by a letter. Each number must be a 7, 8 or 9. Each letter must be a C, A or R. Repetition of digits is NOT permitted.
Use the counting principle to determine the number of points in the sample space.
Construct a tree diagram to represent this situation.
List the sample space.
Determine the exact probability of creating a mini license plate with an R. Give solution exactly in reduced fraction form.
Answer by stanbon(75887)   (Show Source):
You can put this solution on YOUR website! A mini license plate for a toy car must consist of two numbers followed by a letter.
Pattern: NNL
-----------------------
Each number must be a 7, 8 or 9. Each letter must be a C, A or R. Repetition of digits is NOT permitted.
-------
Use the counting principle to determine the number of points in the sample space.
Ans: 3*2*3 = 18 points
-------
Construct a tree diagram to represent this situation.
List the sample space.
Ans: I'll leave that to you.
---------------------------------------
Determine the exact probability of creating a mini license plate with an R. Give solution exactly in reduced fraction form.
-----
Ans: 3*2*1 = 6
P(NNR) = 6/18 = 1/3
---------------------
Cheers,
Stan H.
========================
|
|
|
