5/8 nxnznsn Josh’s said McManus McDonald’s 789 week
Answer:
76 words each minute
Step-by-step explanation:
0,6(y + 3)= 4,8
6y + 18 =48
6y = 30
y = 5
The triangle (call it <em>T </em>) has base and height 4, so its area is 1/2*4*4 = 8. Then the joint density function is
where <em>T</em> is the set
(a) I've attached an image of the integration region.
(b) <em>X</em> and <em>Y</em> are independent if the joint distribution is equal to the product of their marginal distributions.
Get the marginal distributions of one random variable by integrating the joint density over all values of the other variable:
Clearly, , so they are not independent.
I hope this helps you
Thomas x age
Huilan 3x age
x+3x=112
4x=112
x=28