Question 34 - Week 1 Practice | Prasnya
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Week 1
Question 34
00:00
Est. 2 min
Marks:
+3.00
0.00
Let
X
∼
Binomial
(
n
,
p
)
X\sim\operatorname{Binomial}(n,p)
. If the expected value and variance of
X
X
are
2
2
and
3
2
\frac{3}{2}
respectively, find the value of
P
(
X
=
2
)
P(X=2)
.
Single correct
Medium Difficulty
16 July 2023
A
7
×
3
6
4
7
\frac{7\times 3^6}{4^7}
B
7
×
3
6
4
8
\frac{7\times 3^6}{4^8}
C
(
8
2
)
×
3
2
4
8
\binom{8}{2}\times\frac{3^2}{4^8}
D
(
4
2
)
×
3
2
4
4
\binom{4}{2}\times\frac{3^2}{4^4}
