# Probability · Mathematics · AP EAPCET

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AP EAPCET 2021 - 20th August Morning Shift
One card is selected at random from 27 cards numbered form 1 to 27. What is the probability that the number on the card is even or divisible by 5....
AP EAPCET 2021 - 20th August Morning Shift
Nine balls one drawn simultaneously from a bag containing 5 white and 7 black balls. The probability of drawing 3 white and 6 black balls is
AP EAPCET 2021 - 20th August Morning Shift
The probabilities that $$A$$ and $$B$$ speak truth are $$\frac{4}{5}$$ and $$\frac{3}{4}$$ respectively. The probability that they contradict each oth...
AP EAPCET 2021 - 20th August Morning Shift
The mean and variance of a binomial variable X are 2 and 1 respectively. The probability that X takes values greater than 1 is
AP EAPCET 2021 - 19th August Evening Shift
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
AP EAPCET 2021 - 19th August Evening Shift
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 \$...
AP EAPCET 2021 - 19th August Evening Shift
A coin is tossed 2020 times. The probability of getting head on 1947th toss is
AP EAPCET 2021 - 19th August Evening Shift
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...
AP EAPCET 2021 - 19th August Evening Shift
Let $$X$$ be a random variable which takes values $$1,2,3,4$$ such that $$P(X=r)=K r^3$$ where $$r=1,2,3,4$$ then
AP EAPCET 2021 - 19th August Morning Shift
12 balls are distributed among 3 boxes, then the probability that the first box will contain 3 balls is
AP EAPCET 2021 - 19th August Morning Shift
A random variable X has the probability distribution .tg {border-collapse:collapse;border-spacing:0;} .tg td{border-color:black;border-style:solid;...
AP EAPCET 2021 - 19th August Morning Shift
A die is tossed thrice. If event of getting an even number is a success, then the probability of getting at least 2 successes is
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