Answer:
Y=-1/2x ?
Step-by-step explanation:
There might be an y intercept. First find the slope. (Change in y over change in x) -2-1 over -1-5 then you get -3/-6. You can simplify an get -1/2. That forms an equation of y=-1/2x. That might be part of the answer. You still might need to find the y intercept, and I dont know how really. Hope this helps.
The two dice have PMFs


The sum of the two rolls can take on 8 different values:

The outcome of either roll is independent of the other, so that

a. Then PMF of
is

b. The histogram is nothing special, same as the discrete uniform distribution over the interval [0, 7].
So the first question you just need to convert it to its simplest form. You would do 105 \ 20 and that turns into 4 5/20.
The second question is turning it into a improper fraction so instead of dividing it you would multiply the whole number with the denominator, then add the numerator. So 4 x 9 = 36.
36 + 8 = 44
Add back the denominator to 44 and you get
44/9
Th answer is 3/4 I’m pretty sure