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Quantitative Aptitude

PROBABILITY MCQs

Probability, Probability I

Total Questions : 775 | Page 77 of 78 pages
Question 761. A sequence a, ax, ax2, 
  1.    axn2+1
  2.    axn2-1
  3.    axn-1
  4.    axn2
 Discuss Question
Answer: Option D. -> axn2
Question 762. A five digit number is formed with the digits 0,1,2,3 and 4 without repetition
  1.    3/5
  2.    1/5
  3.    2/5
  4.    4/5
 Discuss Question
Answer: Option B. -> 1/5
Question 763. What is the probability that a number is divisible by 4?
  1.    2
  2.    1/2
  3.    1/4
  4.    1
 Discuss Question
Answer: Option B. -> 1/2
Question 764. What is the probability that a couple with four children have atleast one girl?
  1.    0.0625
  2.    0.9375
  3.    0.5
  4.    0.0257
 Discuss Question
Answer: Option B. -> 0.9375
Question 765. If the difference between the mode and median is 2, then the difference between the median and mean is:
  1.    2
  2.    1
  3.    3
  4.    4
 Discuss Question
Answer: Option B. -> 1
Question 766. When two dice are thrown simultaneously, what is the probability that the sum of the two numbers that turn up is less than 12?
  1.    35/36
  2.    17/36
  3.    15/36
  4.    1/36
 Discuss Question
Answer: Option A. -> 35/36
Question 767. 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
  1.    0.5
  2.    0.75
  3.    0.25
  4.    0.8
 Discuss Question
Answer: Option B. -> 0.75
Question 768. A three-digit number is formed with the digits 1, 2, 3, 4, 5 at random
  1.    1/4
  2.    1/5
  3.    1/2
  4.    3/4
 Discuss Question
Answer: Option B. -> 1/5
Question 769. Two cards are drawn at random from a well - shuffled pack of 52 cards
  1.    17/112
  2.    55/221
  3.    55/121
  4.    33/221
 Discuss Question
Answer: Option B. -> 55/221
Question 770. A bag contains 5 red smileys, 6 yellow smileys and 3 green smileys
  1.    7
  2.    1/7
  3.    3/7
  4.    0
 Discuss Question
Answer: Option B. -> 1/7

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