1
AP EAPCET 2024 - 20th May Evening Shift
MCQ (Single Correct Answer)
+1
-0
A person is known to speak false once out of 4 times, If that person picks a card at random from a pack of 52 cards and reports that it is a king, then the probability that it is actually a king is
A
$\frac{1}{37}$
B
$\frac{1}{5}$
C
$\frac{12}{37}$
D
$\frac{25}{37}$
2
AP EAPCET 2024 - 20th May Evening Shift
MCQ (Single Correct Answer)
+1
-0
For a binomial variate $X \sim B(n, p)$ the difference between the mean and variance is 1 and the difference between their square is 11 . If the probability of $P(x=2)=m\left(\frac{5}{6}\right)^n$ and $n=36$, then $m: n$
A
$6: 5$
B
$7: 10$
C
$36: 1$
D
$42: 25$
3
AP EAPCET 2024 - 20th May Evening Shift
MCQ (Single Correct Answer)
+1
-0
The probability that a man failing to hit a target is $\frac{1}{3}$. If he fires 4 times, then the probability that he hits the target at least thrice is
A
$\frac{16}{27}$
B
$\frac{11}{27}$
C
$\frac{8}{81}$
D
$\frac{32}{81}$
4
AP EAPCET 2024 - 20th May Morning Shift
MCQ (Single Correct Answer)
+1
-0

S is the sample space and $A, B$ are two events of a random experiment. Match the items of List $A$ with the items of List B

$$
\text { List A }
$$
$$
\text { List B }
$$
I $A, B$ are mutually exclusive events a. $$
P(A \cap B)=P(B)-P(\bar{A})
$$
II $$
A, B \text { are independent events }
$$
b. $$
P(A) \leq P(B)
$$
III $$
A \cap B=A
$$
c. $$
P\left(\frac{\bar{A}}{B}\right)=1-P(A)
$$
IV $$
A \cup B=S
$$
d. $$
P(A \cup B)=P(A)+P(B)
$$
e. $$
P(A)+P(B)=2
$$
A
$(I-e)(I I-d)(I I I-c)(I V-b)$
B
(l-a) (II-c) (III-e) (IV-b)
C
$(I-d)(I I-c)(I I I-b)(I V-a)$
D
$(\mathrm{I}-\mathrm{b})(\mathrm{II}-\mathrm{d})(\mathrm{III-a})(\mathrm{IV}-\mathrm{c})$
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