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MCQOPTIONS
This section includes 992 Mcqs, each offering curated multiple-choice questions to sharpen your General Aptitude knowledge and support exam preparation. Choose a topic below to get started.
| 801. |
In which distribution successive trials are without replacement |
| A. | Poisson distribution |
| B. | Binomial distribution |
| C. | Geometric distribution |
| D. | Hypergeometric distribution |
| Answer» E. | |
| 802. |
In a binomial probability distribution it is impossible to find |
| A. | P(X = 0) |
| B. | P(X < 0) |
| C. | P(X > 0) |
| D. | P(0 ≤ X ≤ n) |
| Answer» C. P(X > 0) | |
| 803. |
A random variable X has binomial distribution with n = 10 and p = 0.3 then variance of X is |
| A. | 1 |
| B. | 1.1 |
| C. | 2.1 |
| D. | 3.1 |
| Answer» E. | |
| 804. |
Hypergeometric distribution has parameters |
| A. | 1 |
| B. | 2 |
| C. | 3 |
| D. | 4 |
| Answer» D. 4 | |
| 805. |
The successive trials are with replacement in |
| A. | Geometric distribution |
| B. | Binomial distribution |
| C. | Hypergeometric distribution |
| D. | None of above |
| Answer» C. Hypergeometric distribution | |
| 806. |
Each trial in Binomial distribution has |
| A. | One Outcome |
| B. | Two Outcome |
| C. | Three Outcome |
| D. | Four Outcome |
| Answer» C. Three Outcome | |
| 807. |
Successive trials in binomial distribution are |
| A. | Dependent |
| B. | Independent |
| C. | Equally Likely |
| D. | Mutually exclusive |
| Answer» C. Equally Likely | |
| 808. |
The variance of binomial distribution is always |
| A. | Less than mean |
| B. | Equal to mean |
| C. | Greater than mean |
| D. | Equal to standard deviation |
| Answer» B. Equal to mean | |
| 809. |
In binomial distribution n=6 and p=0.9, then the value of P(X=7) is |
| A. | Zero |
| B. | One |
| C. | Less than zero |
| D. | More than zero |
| Answer» B. One | |
| 810. |
Binomial distribution is negatively skewed when |
| A. | p=0 |
| B. | p>1/2 |
| C. | p<1/2 |
| D. | p=-1/2 |
| Answer» C. p<1/2 | |
| 811. |
The mean of binomial distribution is |
| A. | npq |
| B. | np |
| C. | √npq |
| D. | √np |
| Answer» C. √npq | |
| 812. |
The probability of success changes from trial to trial in |
| A. | Sampling distribution |
| B. | Binomial distribution |
| C. | Hypergeometric distribution |
| D. | Geometric distribution |
| Answer» D. Geometric distribution | |
| 813. |
Binomial distribution has parameters |
| A. | 1 |
| B. | 2 |
| C. | 3 |
| D. | 4 |
| Answer» C. 3 | |
| 814. |
A listing of the possibile outcomes of an experiment and their corresponding probability is called |
| A. | Bayesian table |
| B. | Random Variable |
| C. | Contingency table |
| D. | Probability distribution |
| Answer» E. | |
| 815. |
The the special rule of multiplication of probability, the events must be |
| A. | Empirical |
| B. | Bayesian |
| C. | Independent |
| D. | Independent |
| Answer» D. Independent | |
| 816. |
If you roll a pair of dice, what is the probability that (at least) one of the dice is a 4 or the sum of the dice is 7? |
| A. | 15/36 |
| B. | 13/36 |
| C. | 4/36 |
| D. | None of these |
| Answer» B. 13/36 | |
| 817. |
Which of the following is not a condition of the binomial distribution? |
| A. | trials must be independent |
| B. | must have at least 3 trials |
| C. | Only 2 possible outcomes |
| D. | have constant probability of success |
| Answer» C. Only 2 possible outcomes | |
| 818. |
In special rule of addition of probability, the events are always |
| A. | Bayesian |
| B. | Empirical |
| C. | Independent events |
| D. | Mutually Exclusive events |
| Answer» E. | |
| 819. |
If a card is chosen from a standard deck of cards, what is the probability of getting a diamond (♦) or a club(♣)? |
| A. | 26/52=1/2 |
| B. | 13/52 |
| C. | 20/52 |
| D. | 12/52 |
| Answer» B. 13/52 | |
| 820. |
In a Poisson probability distribution |
| A. | It always contains a contingency table |
| B. | The number of trials is always less than 5 |
| C. | The probability of success is always greater than 5 |
| D. | The mean and variance of the distribution are same (equal) |
| Answer» E. | |
| 821. |
Two dice are thrown simultaneously. What is the probability of getting the sum of the face number is at least 10? |
| A. | 1/3 |
| B. | 1/6 |
| C. | 2/3 |
| D. | 5/6 |
| Answer» C. 2/3 | |
| 822. |
Two dice are thrown simultaneously. What is the probability of getting the sum of the face number is odd? |
| A. | 1/2 |
| B. | 2/3 |
| C. | 3/4 |
| D. | 1/3 |
| Answer» B. 2/3 | |
| 823. |
Find the probability that getting 4 digit number with 1 in the unit place and 2 in the tens place when the numbers 1,2,3,4 and 5 are arranged at random without repeating. |
| A. | 1/5 |
| B. | 1/10 |
| C. | 1/15 |
| D. | 1/20 |
| Answer» E. | |
| 824. |
The last 5 alphabets are written at random then the probability that the letters y and z are written down side by side is : - |
| A. | 1/5 |
| B. | 2/5 |
| C. | 3/5 |
| D. | 4/5 |
| Answer» C. 3/5 | |
| 825. |
The first 7 alphabets are written down at random. what is the probability that the letters a,b,c always come together? |
| A. | 1/7 |
| B. | 2/7 |
| C. | 3/7 |
| D. | 4/7 |
| Answer» B. 2/7 | |
| 826. |
The number of students in the three sections of a class are in the ratio 2:3:4. The average marks scored in each of these sections is in the ratio 4:3:1. By what percent is the average mark of the second section more than the class average? |
| A. | 23.27% |
| B. | 28.57% |
| C. | 32.38% |
| D. | 36.74% |
| Answer» C. 32.38% | |
| 827. |
The average weight of 29 students is 28 kg. By the admission of a new student, the average weight is reduced to 27.8 kg. The weight of the new student is |
| A. | 22 kg |
| B. | 21.6 kg |
| C. | 22.4 kg |
| D. | 21 kg |
| Answer» B. 21.6 kg | |
| 828. |
Tickets numbered 1 to 20 are mixed up and then a ticket is drawn at random. What is the probability that the ticket drawn has a number which is a multiple of 3 or 5? |
| A. | 1/2 |
| B. | 3/5 |
| C. | 9/20 |
| D. | 8/15 |
| Answer» D. 8/15 | |
| 829. |
In a box, there are 8 red, 7 blue and 6 green balls. One ball is picked up randomly. What is the probability that it is neither red nor green? |
| A. | 1/3 |
| B. | 3/5 |
| C. | 8/21 |
| D. | 7/21 |
| Answer» B. 3/5 | |
| 830. |
A bag contains 2 red, 3 green and 2 blue balls. Two balls are drawn at random. What is the probability that none of the balls drawn is blue? |
| A. | 10/21 |
| B. | 11/21 |
| C. | 1/2 |
| D. | 2/7 |
| Answer» B. 11/21 | |
| 831. |
What is the probability of getting a sum 9 from two throws of a dice? |
| A. | 1/2 |
| B. | 3/4 |
| C. | 1/9 |
| D. | 2/9 |
| Answer» D. 2/9 | |
| 832. |
Three unbiased coins are tossed. What is the probability of getting at most two heads? |
| A. | 3/4 |
| B. | 7/8 |
| C. | 1/2 |
| D. | 1/4 |
| Answer» C. 1/2 | |
| 833. |
Two dice are thrown simultaneously. What is the probability of getting two numbers whose product is even? |
| A. | 3/4 |
| B. | 3/8 |
| C. | 5/16 |
| D. | 2/7 |
| Answer» B. 3/8 | |
| 834. |
In a class, there are 15 boys and 10 girls. Three students are selected at random. The probability that 1 girl and 2 boys are selected, is: |
| A. | 21/46 |
| B. | 1/5 |
| C. | 3/25 |
| D. | 1/50 |
| Answer» B. 1/5 | |
| 835. |
In a lottery, there are 10 prizes and 25 blanks. A lottery is drawn at random. What is the probability of getting a prize? |
| A. | 2/7 |
| B. | 5/7 |
| C. | 1/5 |
| D. | 1/2 |
| Answer» B. 5/7 | |
| 836. |
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 |
| B. | 1/221 |
| C. | 25/57 |
| D. | 35/256 |
| Answer» C. 25/57 | |
| 837. |
Two dice are tossed. The probability that the total score is a prime number is: |
| A. | 5/12 |
| B. | 1/6 |
| C. | 1/2 |
| D. | 7/9 |
| Answer» B. 1/6 | |
| 838. |
A card is drawn from a pack of 52 cards. The probability of getting a queen of club or a king of heart is: |
| A. | 2/13 |
| B. | 1/13 |
| C. | 1/26 |
| D. | 1/52 |
| Answer» D. 1/52 | |
| 839. |
Two cards are drawn together from a pack of 52 cards. The probability that one is a spade and one is a heart, is: |
| A. | 3/20 |
| B. | 29/34 |
| C. | 47/100 |
| D. | 13/102 |
| Answer» E. | |
| 840. |
A bag contains 4 white, 5 red and 6 blue balls. Three balls are drawn at random from the bag. The probability that all of them are red, is: |
| A. | 2/91 |
| B. | 1/22 |
| C. | 3/22 |
| D. | 2/77 |
| Answer» B. 1/22 | |
| 841. |
One card is drawn at random from a pack of 52 cards. What is the probability that the card drawn is a face card (Jack, Queen and King only)? |
| A. | 3/13 |
| B. | 1/13 |
| C. | 3/52 |
| D. | 9/52 |
| Answer» B. 1/13 | |
| 842. |
A bag contains 6 black and 8 white balls. One ball is drawn at random. What is the probability that the ball drawn is white? |
| A. | 3/7 |
| B. | 4/7 |
| C. | 1/8 |
| D. | 3/4 |
| Answer» C. 1/8 | |
| 843. |
A bag contains 6 black and 8 white balls. One ball is drawn at random. What is the probability that the ball drawn is white? |
| A. | 3/7 |
| B. | 4/7 |
| C. | 1/8 |
| D. | 3/4 |
| Answer» C. 1/8 | |
| 844. |
What is the probability that it is either a heart card or diamond card, when a card is drawn from a well shuffled standard pack of 52 playing cards? |
| A. | 1 |
| B. | 1/2 |
| C. | 3/4 |
| D. | 1/3 |
| Answer» C. 3/4 | |
| 845. |
From well shuffled standard pack of 52 playing cards,one card is drawn. What is the probability that it is either a red card or black card? |
| A. | 1/2 |
| B. | 3/4 |
| C. | 1 |
| D. | 1/3 |
| Answer» D. 1/3 | |
| 846. |
A bag contains 3 black, 4 white and 5 red balls. One ball is drawn at random. Find the probability that it is either black or red ball: |
| A. | 2/3 |
| B. | 1/4 |
| C. | 5/12 |
| D. | 1/2 |
| Answer» B. 1/4 | |
| 847. |
Find the probability that it is either white or red ball when,one ball is drawn at random in a bag that contains 3 black,4 white and 5 red balls |
| A. | 0.5 |
| B. | 0.75 |
| C. | 0.25 |
| D. | 0.8 |
| Answer» C. 0.25 | |
| 848. |
What is the probability of getting 53 Mondays in a leap year? |
| A. | 1/7 |
| B. | 3/7 |
| C. | 2/7 |
| D. | 1 |
| Answer» D. 1 | |
| 849. |
If p:q are the odds in favour of an event,then the probability of that event is: |
| A. | p/q |
| B. | p/(p+q) |
| C. | q/(p+q) |
| D. | none |
| Answer» C. q/(p+q) | |
| 850. |
A number is selected from the numbers 1,2,3,4.......25.The probability for it to be divisible by 4 or 7 is: |
| A. | 3/25 |
| B. | 9/25 |
| C. | 1/25 |
| D. | None of these |
| Answer» C. 1/25 | |