Answer:

Step-by-step explanation:
We require more information by I will explain in principle:
If Type A has at least 300 hours and Type B at least 400 hours.

You need to determine the Probability density function of X and Y and then subtract 1 from both

This will give you the probability of the expression.
Answer:
Step-by-step explanation:
Answer: Option 'C' is correct.
Step-by-step explanation:
Since we have given that
the sides of the cubes are numbered 1 through 6,
So,

if they are both tossed ,
Probability (getting that they will both be a 3) is given by

(∵
)
Therefore, Option 'C' is correct.
1 because you have 4 quarts in a gallon and 4•3=12 and 4•2=8+3=11 then subtract that and get 1
assuming the tiles are numbered 1, 2, 3, 4, 5, 6
there is one tile with the number 2 on it in the first bag
and 1 tile with the number 3 on it in the second bag
so you have a 1/6 probability of picking the 2 and a 1/6 probability of picking the 3
so 1/6 * 1/6 = 1/36 probability of picking them both