1
AP EAPCET 2021 - 19th August Evening Shift
MCQ (Single Correct Answer)
+1
-0

P speaks truth in 70% of the cases and Q in 80% of the cases. In what percent of cases are they likely to agree in stating the same fact

A
38%
B
48%
C
52%
D
62%
2
AP EAPCET 2021 - 19th August Evening Shift
MCQ (Single Correct Answer)
+1
-0

If $$A$$ and $$B$$ are two events with $$P(A \cap B)=\frac{1}{3}, P(A \cup B)=\frac{5}{6}$$ and $$P\left(A^C\right)=\frac{1}{2}$$, then the value of $$P\left(B^C\right)$$ is

A
$$\frac{1}{2}$$
B
$$\frac{1}{3}$$
C
$$\frac{2}{3}$$
D
$$\frac{5}{6}$$
3
AP EAPCET 2021 - 19th August Evening Shift
MCQ (Single Correct Answer)
+1
-0

A coin is tossed 2020 times. The probability of getting head on 1947th toss is

A
$$\left(\frac{1}{2}\right)^{1947}$$
B
$$\left(\frac{1}{2}\right)^{2020}$$
C
$$\frac{1}{2}$$
D
$$\frac{2}{1947}$$
4
AP EAPCET 2021 - 19th August Evening Shift
MCQ (Single Correct Answer)
+1
-0

A discrete random variable X takes values 10, 20, 30 and 40. with probability 0.3, 0.3, 0.2 and 0.2 respectively. Then the expected value of X is

A
12
B
22
C
23
D
24
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