B. First and Second St appear to be parallel
Answer:
symmetric
Step-by-step explanation:
it kind of evenly falls to the left and right from the highest value in the middle
skewed would be different and would look like a straight line not a quadratic equation
With 
, we have identical PDFs
for 
, and 0 otherwise, where
Since 
are independent, the joint PDF is
for points 
in the unit square, and 0 otherwise.
1. The distribution is continuous, so 
.
2. 
is the region in the 
plane contained within the unit square and above the line 
. This region is empty, because this line lies above the square altogether, so 
.
3. 
is the region in the same square below the line 
. So we have
