1
AIEEE 2003
+4
-1
Five horses are in a race. Mr. A selects two of the horses at random and bets on them. The probability that Mr. A selected the winning horse is :
A
$${{2 \over 5}}$$
B
$${{4 \over 5}}$$
C
$${{3 \over 5}}$$
D
$${{1 \over 5}}$$
2
AIEEE 2002
+4
-1
$$A$$ and $$B$$ are events such that $$P\left( {A \cup B} \right) = 3/4$$,$$P\left( {A \cap B} \right) = 1/4,$$
$$P\left( {\overline A } \right) = 2/3$$ then $$P\left( {\overline A \cap B} \right)$$ is :
A
$$5/12$$
B
$$3/8$$
C
$$5/8$$
D
$$1/4$$
3
AIEEE 2002
+4
-1
Out of Syllabus
A dice is tossed $$5$$ times. Getting an odd number is considered a success. Then the variance of distribution of success is :
A
$$8/3$$
B
$$3/8$$
C
$$4/5$$
D
$$5/4$$
4
AIEEE 2002
+4
-1
A problem in mathematics is given to three students $$A,B,C$$ and their respective probability of solving the problem is $${1 \over 2},{1 \over 3}$$ and $${1 \over 4}.$$ Probability that the problem is solved is :
A
$${3 \over 4}$$
B
$${1 \over 2}$$
C
$${2 \over 3}$$
D
$${1 \over 3}$$
EXAM MAP
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