It would be Y=kx.
Look at photo for explanation

Answer you are looking for is 13
Answer:
1. 1 and 2; 2 and 3
2. 4 and 5; 5 and 6
3. 7 and 8; 8 and 9
4. 1 and 3; 2 and 4
Step-by-step explanation:
I think the correct answer from the choices listed above is the second option. Combining probabilities is a function of mutually exclusive events. Joint probability<span> is a measure of two events happening at the same time, and can only be applied to situations where more than one observation can be occurred at the same time.</span>