1
AP EAPCET 2021 - 20th August Morning Shift
MCQ (Single Correct Answer)
+1
-0

The mean and variance of a binomial variable X are 2 and 1 respectively. The probability that X takes values greater than 1 is

A
$$\frac{5}{16}$$
B
$$\frac{8}{16}$$
C
$$\frac{11}{16}$$
D
$$\frac{1}{16}$$
2
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%
3
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
$$\frac{5}{6}$$
4
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
$$\frac{2}{1947}$$
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