This quiz works best with JavaScript enabled. Home > Cbse > Class 9 > Mathematics > Probability > Class 9 Maths Chapter 15 Probability – Quiz 1 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 9 Maths Chapter 15 Probability Quiz 1 (60 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. The probability of Asher's soccer team winning its next game is 7/10. What is the probability of not winning their next game? A) Impossible. B) 3/10. C) Unlikely. D) 1/2. Show Answer Correct Answer: B) 3/10. 2. A die is thrown 300 times and odd numbers are obtained 153 times. Then the probability of getting an even number is A) 147/300. B) 153/300. C) 147/153. D) 174/300. Show Answer Correct Answer: A) 147/300. 3. A die is rolled once. What is the probability of rolling a number less than 5? A) 4/6. B) 2/3. C) 1/6. D) 5/6. Show Answer Correct Answer: B) 2/3. 4. A die is rolled once. What is the probability of rolling NOT a 4? Your answer should be a fraction in simplest form. A) 1/5. B) 1/6. C) 5/6. D) 4/6. Show Answer Correct Answer: C) 5/6. 5. If P(E) = 0.44, then P(not E) will be: A) 0.55. B) 0.50. C) 0.46. D) 0.56. Show Answer Correct Answer: D) 0.56. 6. A box contains 5 purple marbles, 3 green marbles and 2 orange marbles. Marbles are taken one at a time without replacement. P(both marbles are purple) A) 2/9. B) 1/3. C) 1/4. D) 1/2. Show Answer Correct Answer: A) 2/9. 7. You have a bag of 17 marbles. Four are blue, 6 are green, 2 are red, and the others are yellow. What is the probability of drawing a green marble, putting it aside, and then drawing another green marble? A) 15/136. B) 30/289. C) Other. D) None of the above. Show Answer Correct Answer: A) 15/136. 8. A piggy bank contains hundred 50 p coins, fifty rs.1 coins, twenty rs.2 coins and ten rs.5 coins. If it is equally likely that one of the coins will fall out when the bank is turned upside down, what is the probability that the coin will not be a 50 p coin? A) 5. B) 5/9. C) 100/180. D) 4/9. Show Answer Correct Answer: D) 4/9. 9. In a class, there are x girls and y boys, a student is selected at random, then find the probability of selecting a boy. A) (x+y)/y. B) (x+y)/x. C) Y/(x+y). D) X/(x+y). Show Answer Correct Answer: C) Y/(x+y). 10. A number is chosen at random from 1 to 10. Find the probability of not selecting a multiple of 3. A) $\frac{7}{10}$. B) $\frac{4}{5}$. C) $\frac{1}{5}$. D) $\frac{3}{10}$. Show Answer Correct Answer: A) $\frac{7}{10}$. 11. There are 5 red roses, 3 yellow roses, and 8 white roses in a tray. If Stephanie picked 2 roses one after the other without replacing, then what is the probability of picking a white rose first and a red rose next? A) 5/6. B) 2/3. C) 1/3. D) 1/6. Show Answer Correct Answer: D) 1/6. 12. A number is chosen at random from 1 to 10. Find the probability of a 9 or smaller. A) $\frac{1}{10}$. B) $\frac{2}{10}$. C) $\frac{9}{10}$. D) None of the above. Show Answer Correct Answer: C) $\frac{9}{10}$. 13. The probability of each event lies between: A) 0 & 1. B) 1 & 2. C) 1 & 10. D) 0 & 5. Show Answer Correct Answer: A) 0 & 1. 14. Find the probability of rolling factors of 12. A) $\frac{5}{6}$. B) $\frac{4}{6}$. C) $\frac{2}{3}$. D) None of the above. Show Answer Correct Answer: A) $\frac{5}{6}$. 15. Find the probability of each set of independent events.flipping a tail on a coin and spinning a 5 on a spinner with sections of equal area numbered 1-5. A) 1/2. B) 1/10. C) 1/7. D) 1/5. Show Answer Correct Answer: B) 1/10. 16. In the game that Tony is playing, there is a 1/8 chance the spinner will land on red and a 3/8 chance that the spinner will land on yellow. What is the probability that Tony will NOT spin red, then will spin red? A) 7/16. B) 7/64. C) 3/64. D) Other. Show Answer Correct Answer: B) 7/64. 17. Allie downloads a song from an online service. A few minutes later, a customer in another city searches for a song on the same site. A) Dependent. B) Independent. C) All the above. D) None of the above. Show Answer Correct Answer: B) Independent. 18. A basket contains four apples and six peaches. You randomly select one piece of fruit and eat it. Then you randomly select another piece of fruit. What is the probability that both pieces of fruit are apples. A) 6/21. B) 2/15. C) 3/17. D) 1/19. Show Answer Correct Answer: B) 2/15. 19. If A is any event in S and its complement is A' then, P(A') is equal to A) 1-A. B) 1-P(A). C) 0. D) 1. Show Answer Correct Answer: B) 1-P(A). 20. Find the probability of rolling 12 from two dices. A) $\frac{1}{36}$. B) $\frac{1}{6}$. C) $\frac{1}{12}$. D) None of the above. Show Answer Correct Answer: A) $\frac{1}{36}$. 21. The possible outcomes of an experiment are called ..... A) Events. B) Trails. C) All the above. D) None of the above. Show Answer Correct Answer: A) Events. 22. Find the probability of not rolling factors of 18. A) $\frac{1}{3}$. B) $\frac{1}{2}$. C) $\frac{2}{3}$. D) None of the above. Show Answer Correct Answer: B) $\frac{1}{2}$. 23. There are seven boys and seven girls in a class. The teacher randomly selects one student to answer a question. Later, the teacher randomly selects a different student to answer another question. What is the probability that the first student is a boy and the second student is a girl? A) 1/2. B) 8/29. C) 2/17. D) 7/26. Show Answer Correct Answer: D) 7/26. 24. IfP (event E) = 0.47, then find P(not E). A) 0. B) 0.53. C) 1.53. D) 1.47. Show Answer Correct Answer: B) 0.53. 25. A number is chosen at random from 1 to 50. Find the probability of selecting numbers with a last digit of 4. A) $\frac{2}{25}$. B) $\frac{4}{50}$. C) $\frac{3}{50}$. D) $\frac{1}{10}$. Show Answer Correct Answer: D) $\frac{1}{10}$. 26. The probability of an event that cannot happen is A) 1. B) 0. C) -1. D) None. Show Answer Correct Answer: B) 0. 27. There are 6 red marbles, 5 green marbles, and 4 yellow marbles in a bag. If Joe picks 2 marbles one after the other without replacement, then what is the probability that both are red in color? A) 1/21. B) 1/7. C) 4/25. D) 2/5. Show Answer Correct Answer: B) 1/7. 28. Probability of an Event 'E' + Probability of the event 'not E' is A) 0. B) -1. C) 1. D) None. Show Answer Correct Answer: C) 1. 29. An experiment consists of rolling a fair number cube. Find the theoretical probability of rolling an 8. A) 0. B) 4/3. C) 8/6. D) 1/2. Show Answer Correct Answer: A) 0. 30. A die is rolled once. What is the probability of rolling a 5 or a 6? Your answer should be a fraction in simplest form. A) 1/5. B) 5/6. C) 2/6. D) 1/3. Show Answer Correct Answer: D) 1/3. 31. An action which results in some well-defined outcomes is called ..... A) Experiment. B) Event. C) Trial. D) None of the above. Show Answer Correct Answer: A) Experiment. 32. The cafeteria is serving three kinds of sandwiches:tuna (T), chicken, (C), and peanut butter (P). They are also serving a choice of two drinks:milk (M) or water (W). Which is the complete set of possibilities of combinations? A) TW, CW, PW. B) TW, TM, TW, CW, PW. C) TW, TM, CW, CM, PW, PM. D) None of the above. Show Answer Correct Answer: C) TW, TM, CW, CM, PW, PM. 33. A number is chosen at random from 1 to 10. Find the probability of selecting an odd number. A) $\frac{2}{5}$. B) $\frac{1}{2}$. C) $\frac{3}{5}$. D) None of the above. Show Answer Correct Answer: B) $\frac{1}{2}$. 34. Find the probability of rolling an even number. A) $\frac{4}{6}$. B) $\frac{5}{6}$. C) $\frac{1}{2}$. D) None of the above. Show Answer Correct Answer: C) $\frac{1}{2}$. 35. A box contains 50 bolts and 150 nuts. On checking the box, it was found that half of the bolts and half of the nuts are rusted. If one item is chosen at random, find the probability that it is rusted. A) 1/4. B) 3/4. C) 1/2. D) 1/3. Show Answer Correct Answer: C) 1/2. 36. In a sample study 642 people, it was found that 514 people have high school certificate. If a person is selected at random, then the probability that the person has a high school certificate is A) 0.5. B) 0.8. C) 0.6. D) 0.7. Show Answer Correct Answer: B) 0.8. 37. Which of the following cannot be the empirical probability of an event? A) 0. B) 3/2. C) 1/6. D) 2/3. Show Answer Correct Answer: B) 3/2. 38. In a statistics class there are 18 juniors and 10 seniors; 6 of the seniors are females, and 12 of the juniors are males. If a student is selected at random, find the probability of selecting a junior or a female. A) 12/28. B) 6/28. C) 24/28. D) 18/28. Show Answer Correct Answer: C) 24/28. 39. The probability of any event of an experiment is ..... A) 1. B) Greater than 1. C) 0. D) Lies between 0 and 1. Show Answer Correct Answer: D) Lies between 0 and 1. 40. The probability of guessing the correct answer to a certain question is x/ 2.If probability of not guessing the correct answer is 2 /3 then find x A) 2/5. B) 1/3. C) 2/3. D) 1/4. Show Answer Correct Answer: C) 2/3. 41. The probability based on the concept of relative frequency theory is called A) Empirical probability. B) Classical probability. C) Both (1) and (2). D) Neither (1) nor (2). Show Answer Correct Answer: A) Empirical probability. 42. What is the probability of impossible events? A) More than 1. B) 0. C) Less than 1. D) 1. Show Answer Correct Answer: B) 0. 43. Empirical probability is also known as A) Classic probability. B) Subjective probability. C) Experimental probability. D) None of the above. Show Answer Correct Answer: C) Experimental probability. 44. A collection of one or more outcomes of an expperiment is called A) Event. B) Outcome. C) Sample point. D) None of these. Show Answer Correct Answer: A) Event. 45. A die is rolled once. What is the probability of rolling a number less than 1? Your answer should be a fraction in simplest form. A) 1/6. B) 0. C) 1/3. D) 5/6. Show Answer Correct Answer: B) 0. 46. A coin is tossed twice. What is the probability of getting atleast one head? A) 0. B) 3/4. C) 2/4. D) 1/4. Show Answer Correct Answer: B) 3/4. 47. A coin is tossed 40 times and it showed tail 24 times. The probability of getting head is ..... A) 17/40. B) 2/5. C) 3/5. D) 1/2. Show Answer Correct Answer: B) 2/5. 48. There are 14 tiles with one letter from the word MATHEMATICIANS on each. Find the probability of randomly choosing the letter "M" . A) 1/14. B) 1/2. C) 2/7. D) 1/7. Show Answer Correct Answer: D) 1/7. 49. If two coins are tossed simultaneously, then what is the probability of getting exactly two tails? A) 1/4. B) 1/2. C) 1/3. D) None of these. Show Answer Correct Answer: A) 1/4. 50. Tossing a coin 50 times is called an ..... A) Event. B) Experiment. C) All the above. D) None of the above. Show Answer Correct Answer: B) Experiment. 51. A dice is thrown. The probability of getting 1 and 5 is: A) 1/3. B) 1/2. C) 1/6. D) 2/3. Show Answer Correct Answer: A) 1/3. 52. Sam rolled a number cube 50 times. A '3' appeared 10 times. Find the probability of getting '3'. A) $\frac{20}{50}$. B) $\frac{30}{50}$. C) $\frac{40}{50}$. D) $\frac{10}{50}$. Show Answer Correct Answer: D) $\frac{10}{50}$. 53. A recent study of 200 nurses found that of 125 female nurses, 56 had bachelor's degrees:and of 75 male nurses, 34 had bachelor's degrees. If a nurse is selected at random, find the probability that the nurse is a female or has a bachelor degree. A) 215/200. B) 159/200. C) 90/200. D) 125/200. Show Answer Correct Answer: B) 159/200. 54. A day in the year is randomly chosen. Given the day is in the month of December, what is the probability the day is the 25$^{th}$? (December has 31 total days.) A) 8.5%. B) 3.2%. C) 80.6%. D) 8.84%. Show Answer Correct Answer: B) 3.2%. 55. If P(E) = 0.38, then probability of event E, not occurring is: A) 0.48. B) 1. C) 0.38. D) 0.62. Show Answer Correct Answer: D) 0.62. 56. Pablo chooses a colored marble from a mixed bag and writes down the color. Pablo leaves it out and then draws another. A) Independent. B) Dependent. C) All the above. D) None of the above. Show Answer Correct Answer: B) Dependent. 57. A six sided die is rolled twice. What is the probability of getting a 6 on the first roll, then a number less than 5 on the second roll? A) 5/36. B) 1/36. C) 2/3. D) 1/9. Show Answer Correct Answer: D) 1/9. 58. When a die is thrown, the probability of getting an odd number less than 4 is A) 0. B) 1/3. C) 2/3. D) 1/6. Show Answer Correct Answer: B) 1/3. 59. If two events cannot occur simultaneously (at the same time), in a single trial they are said to be A) EQUALLY LIKELY. B) NOT EQUALLY LIKELY. C) MUTUALLY EXCLUSIVE. D) None of the above. Show Answer Correct Answer: C) MUTUALLY EXCLUSIVE. 60. Which formula do you use when two events are mutually exclusive? A) P(A or B) = P(A) + P(B). B) P(A or B) = P(A) + P(B)-P(both). C) P(A and B) = P(A) * P(B). D) P (A and B) = P(A) * P(B|A). Show Answer Correct Answer: A) P(A or B) = P(A) + P(B). Next →Related QuizzesMathematics QuizzesClass 9 QuizzesClass 9 Maths Chapter 15 Probability Quiz 2 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books