Answer 3,5,7
Step-by-step explanation:
Answer:
Step-by-step explanation:
Given 
a)
we know that 
therefore 
on integrating we get
c=(1/6640)
b)
on doing the integration we get
=0.37349
c)
marginal density of X is
on doing integration we get
f(x)=(4x+3)/3320 ; 0<x<40
marginal density of Y is
on doing integration we get
d)
solve the above integration we get the answer
e)
solve the above integration we get the answer
f)
Two variables are said to be independent if there jointprobability density function is equal to the product of theirmarginal density functions.
we know f(x,y)
In the (c) bit we got f(x) and f(y)
f(x,y)cramster-equation-2006112927536330036287f(x).f(y)
therefore X and Y are not independent
Substitute each value in:
x < 3
y > 1
<h2>1 < 3</h2><h2>2 > 1</h2>
5 < 3
2 > 1
0 < 3
0 > 1
2 < 3
0 > 1
Answer:
Step-by-step explanation:
4(5 +6) - 15
4(11) - 15
= 44 - 15
= 25
The solution is equal to 29
Assuming that the expression equals 0
3x+9=0
Subtract 9
3x= -9
-9/3= -3
x= -3