A mini license plate for a toy car must consist of two letters followed by a one digit odd number. Each letter must be a K or a Q. Repetition of letters is not permitted.
Use the counting principle to determine the number of points in the sample space.
Construct a tree diagram
List the sample space.
Determine the exact probability of creating a mini license plate with a 3. Give solution exactly in reduced fraction form.

Question

A mini license plate for a toy car must consist of two letters followed by a one digit odd number. Each letter must be a K or a Q. Repetition of letters is not permitted.  
Use the counting principle to determine the number of points in the sample space. 
Construct a tree diagram 
List the sample space. 
Determine the exact probability of creating a mini license plate with a 3. Give solution exactly in reduced fraction form.

anonymous · Answer

two choices for the two letters: 
KW or WK 
5 choices for odd one digit number:
1,3,5,7,9

counting principle: number of ways is 
$$2\times 5=10$$

anonymous · Answer

umean k and or Q

anonymous · Answer

"3" is one out of the 5 choices for odd numbers 
probablity is 
$$\frac{1}{5}$$

anonymous · Answer

yes,i mean K or Q sorry