Two cards are drawn successively with replacement from a well-shuffled deck of 52cards. Let X denote the random variable of number of aces obtained in the two drawn
cards. Then P(X = 1) + P(X = 2) equals :
a.
52/169
b.
25/169
c.
49/169
d.
24/169
a.
52/169
b.
25/169
c.
49/169
d.
24/169
Question ID - 56545 | SaraNextGen Top Answer Two cards are drawn successively with replacement from a well-shuffled deck of 52cards. Let X denote the random variable of number of aces obtained in the two drawn
cards. Then P(X = 1) + P(X = 2) equals :
a.
52/169
b.
25/169
c.
49/169
d.
24/169
Two cards are drawn successively with replacement from a well-shuffled deck of 52cards. Let X denote the random variable of number of aces obtained in the two drawn
cards. Then P(X = 1) + P(X = 2) equals :
|
a. |
52/169 |
b. |
25/169 |
|
c. |
49/169 |
d. |
24/169 |
1 Answer
127 votes
Answer Key / Explanation : (b) -
Two cards are drawn successively with replacement 4Aces 48Non Aces
P(X=1)=
+
=
P(X=2)=
=
P(X=1)+p(X=2)=
127 votes
Answer Link
127