## QA – Placement Quizzes | Probability | Question 13

From a pack of 52 cards, two cards are drawn together at random. What is the probability of both the cards being kings? (A) 1/15… Read More »

- Minimum size binary string required such that probability of deleting two 1's at random is 1/X
- Probability of finding an element K in a Singly Linked List
- Probability of getting all possible values on throwing N dices
- Probability that an arbitrary positive divisor of 10^X is an integral multiple of 10^Y
- Probability of getting a perfect square when a random number is chosen in a given range
- Python - Binomial Distribution
- Probability of not getting two consecutive heads together in N tosses of coin
- Python – 68-95-99.7 rule in Statistics

From a pack of 52 cards, two cards are drawn together at random. What is the probability of both the cards being kings? (A) 1/15… Read More »

Two dice are thrown simultaneously. What is the probability of getting two numbers whose product is even? (A) 7/9 (B) 5/8 (C) 3/4 (D) 1/2… Read More »

What is the probability of getting a sum of 9 from two throws of a dice? (A) 1/3 (B) 1/6 (C) 1/9 (D) 1/12 Answer:… Read More »

Recently DirectI visited our campus for placements for three profiles – 1. Platform Engineer 2. Applications Engineer 3. Operations Engineer This process is for the… Read More »

Ram speaks truth in 3/4 of cases and Shyam in 4/5 of cases. In what percent of cases while narrating the same event are they… Read More »

A box having 5 black and 3 brown flags. Another box having 4 black and 6 brown flags. If one flag is drawn from each… Read More »

A 5 digit number is formed by using digits 1, 2, 3, 4 and 5 with no two digits same. What is the probability that… Read More »

A bag contains 21 balls numbered 1 to 21. two balls are drawn one after another without replacement. Find the probability that both balls are… Read More »

What is the probability that a number selected from numbers [1,30] is prime number? (A) 1/3 (B) 2/7 (C) 5/9 (D) 5/30 Answer: (A) Explanation:… Read More »

An urn contains 12 red and 18 white marbles. Two marbles are drawn without replacement one after another. What is the probability that first is… Read More »

4 dices are thrown simultaneously. What is the probability that all the dices show the same number. (A) 1/216 (B) 1/36 (C) 4/216 (D) 4/36… Read More »

A box contains 6 black, 5 brown and 2 yellow balls. If 2 balls are selected at random, what is the probability that both are… Read More »

A and B appeared for an exam. Let A is selected when even x happens and B is selected if the event y happens. The… Read More »

A number p is chosen at random from the numbers [-3, 3]. What is the probability that value of p < 2 (A) 3/7 (B) 5/7… Read More »

Given a coin which gives HEADS with probability 1/4 and TAILS with 3/4. The coin is tossed k times. What is the probability that we… Read More »