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Question 15 - Week 5 Practice | Prasnya
Q15
00:00
3 Aug 2025
Q15.
What is the marginal density function
f
X
(
x
)
f_X(x)
f
X
(
x
)
?
@passage
A
f
X
(
x
)
=
{
4
−
x
2
/
π
,
0
<
x
<
4
;
0
otherwise
}
f_X(x)=\{\sqrt{4-x^2}/\pi,\ 0<x<4;\ 0\text{ otherwise}\}
f
X
(
x
)
=
{
4
−
x
2
/
π
,
0
<
x
<
4
;
0
otherwise
}
B
f
X
(
x
)
=
{
4
−
x
2
/
(
4
π
)
,
0
<
x
<
2
;
0
otherwise
}
f_X(x)=\{\sqrt{4-x^2}/(4\pi),\ 0<x<2;\ 0\text{ otherwise}\}
f
X
(
x
)
=
{
4
−
x
2
/
(
4
π
)
,
0
<
x
<
2
;
0
otherwise
}
C
f
X
(
x
)
=
{
1
−
x
2
/
π
,
0
<
x
<
4
;
0
otherwise
}
f_X(x)=\{\sqrt{1-x^2}/\pi,\ 0<x<4;\ 0\text{ otherwise}\}
f
X
(
x
)
=
{
1
−
x
2
/
π
,
0
<
x
<
4
;
0
otherwise
}
D
f
X
(
x
)
=
{
4
−
x
2
/
π
,
0
<
x
<
2
;
0
otherwise
}
f_X(x)=\{\sqrt{4-x^2}/\pi,\ 0<x<2;\ 0\text{ otherwise}\}
f
X
(
x
)
=
{
4
−
x
2
/
π
,
0
<
x
<
2
;
0
otherwise
}
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Q15
00:00
3 Aug 2025
Q15.
What is the marginal density function
f
X
(
x
)
f_X(x)
f
X
(
x
)
?
@passage
A
f
X
(
x
)
=
{
4
−
x
2
/
π
,
0
<
x
<
4
;
0
otherwise
}
f_X(x)=\{\sqrt{4-x^2}/\pi,\ 0<x<4;\ 0\text{ otherwise}\}
f
X
(
x
)
=
{
4
−
x
2
/
π
,
0
<
x
<
4
;
0
otherwise
}
B
f
X
(
x
)
=
{
4
−
x
2
/
(
4
π
)
,
0
<
x
<
2
;
0
otherwise
}
f_X(x)=\{\sqrt{4-x^2}/(4\pi),\ 0<x<2;\ 0\text{ otherwise}\}
f
X
(
x
)
=
{
4
−
x
2
/
(
4
π
)
,
0
<
x
<
2
;
0
otherwise
}
C
f
X
(
x
)
=
{
1
−
x
2
/
π
,
0
<
x
<
4
;
0
otherwise
}
f_X(x)=\{\sqrt{1-x^2}/\pi,\ 0<x<4;\ 0\text{ otherwise}\}
f
X
(
x
)
=
{
1
−
x
2
/
π
,
0
<
x
<
4
;
0
otherwise
}
D
f
X
(
x
)
=
{
4
−
x
2
/
π
,
0
<
x
<
2
;
0
otherwise
}
f_X(x)=\{\sqrt{4-x^2}/\pi,\ 0<x<2;\ 0\text{ otherwise}\}
f
X
(
x
)
=
{
4
−
x
2
/
π
,
0
<
x
<
2
;
0
otherwise
}
Save
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Details
