This quiz works best with JavaScript enabled. Home > Cbse > Class 9 > Mathematics > Probability > Class 9 Maths Chapter 15 Probability – Quiz 2 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 9 Maths Chapter 15 Probability Quiz 2 (45 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. 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 be a rs.2 coin? A) 20. B) 20/180. C) 8. D) 8/9. Show Answer Correct Answer: B) 20/180. 2. A box contains 5 purple marbles, 3 green marbles and 2 orange marbles. Draws are made without replacement. P(1st orange then green) A) 2/15. B) 3/31. C) 1/5. D) 1/15. Show Answer Correct Answer: D) 1/15. 3. A number is chosen at random from 1 to 10. Find the probability of selecting a multiple of 2 or a multiple of 3. A) $\frac{7}{10}$. B) $\frac{6}{10}$. C) $\frac{8}{10}$. D) $\frac{4}{5}$. Show Answer Correct Answer: A) $\frac{7}{10}$. 4. The six faces of the dice are called equally likely if the dice is A) Small. B) Fair. C) Round. D) Six-faced. Show Answer Correct Answer: B) Fair. 5. An action which results in one or several outcomes is called ..... A) Trial. B) Event. C) All the above. D) None of the above. Show Answer Correct Answer: A) Trial. 6. The sum of all probabilities equal to: A) 3. B) 1. C) 2. D) 4. Show Answer Correct Answer: B) 1. 7. P(A) =.49P(A') =? A) 0. B) .49. C) .51. D) 1. Show Answer Correct Answer: C) .51. 8. At a particular school with 200 male students, 58 play football, 40 play basketball, and 8 play both. What is the probability that a randomly selected male student plays neither sport? A) 51/100. B) 49/100. C) 29/100. D) 9/20. Show Answer Correct Answer: D) 9/20. 9. A ten sided die is rolled.P (3 or 5) A) 3/10. B) 25%. C) 1/5. D) 1/10. Show Answer Correct Answer: C) 1/5. 10. A box contains 5 red marbles, 8 white marbles and 4 green marbles.One marble s taken out of the box random.What is the probability that the marble taken out will be not green A) 13/17. B) 13. C) 4/17. D) 17/4. Show Answer Correct Answer: A) 13/17. 11. In a survey of 364 children aged 19-36 months, it was found that 91 liked to eat potato chips. If a child is selected at random, the probability that he/she does not like to eat potato chips is: A) 0.25. B) 0.75. C) 0.80. D) 0.50. Show Answer Correct Answer: B) 0.75. 12. An unlikely chance event is closer to what number? A) 1. B) 3. C) 0. D) 2. Show Answer Correct Answer: C) 0. 13. Rolling a 15 on a dice is A) Impossible. B) Certain. C) Unlikely. D) Equally Likely. Show Answer Correct Answer: A) Impossible. 14. In a cricket match a batsman hits a boundary 4 times out of the 32 balls he plays. In a given ball, what is the probability that he does not hit the ball to the boundary? A) 1/8. B) 4/32. C) 6/8. D) 7/8. Show Answer Correct Answer: D) 7/8. 15. A chorus has 50 girls and 35 boys. If two are chosen at random to sing a duet, what is the probability that both will be boys? HINT:You can not have the same person twice in a duet A) 1/6. B) 7/17. C) 13/25. D) 3/8. Show Answer Correct Answer: A) 1/6. 16. A die is rolled once. What is the probability of rolling an odd number? Your answer should be a fraction in simplest form. A) 2/5. B) 1/2. C) 1/6. D) 3/6. Show Answer Correct Answer: B) 1/2. 17. A coin is tossed 200 times and we get:Head:112 times and Tail:88 times.Find the probability of getting head A) 112/200. B) 88/200. C) 1. D) None of the above. Show Answer Correct Answer: A) 112/200. 18. Christopher picks a marble at random. Without putting the first marble back, he picks a second marble at random. A) Independent. B) Dependent. C) All the above. D) None of the above. Show Answer Correct Answer: B) Dependent. 19. Find the probability of getting a head or a tail while tossing a coin. A) 0. B) 1. C) 1/2. D) None of the above. Show Answer Correct Answer: B) 1. 20. A piggy bank contains 4 quarters, 18 dimes, 10 nickels, and 8 pennies. A coin is chosen at random, not replaced, then another is chosen. Find each probability.P (penny, then dime). A) 17/195. B) 6/65. C) 1/8. D) 9/100. Show Answer Correct Answer: B) 6/65. 21. During P.E. class, one team is picking softball gloves from the class bucket. Lindsey chooses a glove first, followed by Megan. A) Dependent. B) Independent. C) All the above. D) None of the above. Show Answer Correct Answer: A) Dependent. 22. P(sure event)= ..... A) 2. B) 1/2. C) 1. D) 0. Show Answer Correct Answer: C) 1. 23. A die is rolled once. What is the probability of rolling a number less than 5? Your answer should be a fraction in simplest form. A) 1/6. B) 5/6. C) 2/3. D) 4/6. Show Answer Correct Answer: C) 2/3. 24. A box contains 5 purple marbles, 3 green marbles and 2 orange marbles. Draws are made without replacement.P(both marbles are purple) A) 2/9. B) 1/2. C) 1/4. D) 1/3. Show Answer Correct Answer: A) 2/9. 25. 35 students participating in a debate competition. Out of these, 13 are girls and rest are boys. A student is chosen at random. The probability that the chosen student is a boy is A) $\frac{8}{33}$. B) $\frac{17}{33}$. C) $\frac{22}{35}$. D) $\frac{8}{25}$. Show Answer Correct Answer: C) $\frac{22}{35}$. 26. Clara brings a box of donuts to work that contains one donut in each flavor. First the secretary chooses one. Then the office manager makes a selection. A) Dependent. B) Independent. C) All the above. D) None of the above. Show Answer Correct Answer: A) Dependent. 27. A box contains 6 red balls, 10 white balls and 4 green marbles.One balls taken out of the box random.What is the probability that the ball taken out will be red green A) 6. B) 14. C) 3/10. D) 14/20. Show Answer Correct Answer: C) 3/10. 28. If we toss a coin, getting a head or a tail are A) EQUALLY LIKELY. B) NOT EQUALLY LIKELY. C) MUTUALLY EXCLUSIVE. D) None of the above. Show Answer Correct Answer: A) EQUALLY LIKELY. 29. In a throw of a die, find the probability of not getting 4 A) 1/3. B) 2/3. C) 5/6. D) 1/6. Show Answer Correct Answer: C) 5/6. 30. 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 red marble, putting it aside, and then drawing a green marble? A) 1/136. B) 2/17. C) 3/68. D) None of the above. Show Answer Correct Answer: C) 3/68. 31. On a particular day, 30 students are present in a class and another 10 are absent. The teacher calls out attendance of a particular roll number. What is the probability that the student is absent? A) $\frac{1}{3}$. B) $\frac{3}{4}$. C) $\frac{1}{2}$. D) $\frac{1}{24}$. Show Answer Correct Answer: D) $\frac{1}{24}$. 32. P(A) =.4 P(B) =.55P(A intersection B) =.3Find P(AUB) A) What?????. B) .65. C) .95. D) .3. Show Answer Correct Answer: B) .65. 33. When using a 6-sided die, what is the probability or rolling a 3, then not rolling a 3, and then rolling an even number? A) 1/2. B) 5/6. C) 1/12. D) 5/72. Show Answer Correct Answer: D) 5/72. 34. Two fair coins are tossed. What is the probability of getting at most one head? (Hint:Create a sample space) A) 3/4. B) 1. C) 1/2. D) 1/4. Show Answer Correct Answer: C) 1/2. 35. A die is rolled once. What is the probability of rolling a 2, 3, or 4? Your answer should be a fraction in simplest form. A) 1/2. B) 3/6. C) 1/5. D) 4/6. Show Answer Correct Answer: A) 1/2. 36. The probability of each event, when a coin is tossed for 1000 times with frequencies:Head:455 & Tail:545 is: A) 455 & 545. B) 0.455 & 0.545. C) 0.5 & 0.5. D) 0.45 & 0.55. Show Answer Correct Answer: B) 0.455 & 0.545. 37. Samuel has 5 different colors of pens and 2 different colors of paper. Which model could be used to show how many different choices he has? A) Spin a spinner with 5 sections, then flip a coin. B) Roll a die 5 times. C) Roll a die, then flip a coin 5 times. D) Flip a coin 5 times. Show Answer Correct Answer: A) Spin a spinner with 5 sections, then flip a coin. 38. In a cricket match, a batsman hits a boundary 6 times out of 30 balls she plays.Find the probability that she did not hit a boundary A) 4. B) 6. C) 4/5. D) 6/30. Show Answer Correct Answer: C) 4/5. 39. There are six nickels and seven dimes in your pocket. You randomly pick a coin out of your pocket and then return it to your pocket. Then you randomly pick another coin. What is the probability that the coin is a nickle both times? A) 5/16. B) 6/13. C) 3/19. D) 36/169. Show Answer Correct Answer: D) 36/169. 40. Sam rolled a number cube 50 times. A '3' appeared 10 times. Find the probability of getting numbers that are not '3'. A) $\frac{10}{50}$. B) $\frac{30}{50}$. C) $\frac{20}{50}$. D) $\frac{40}{50}$. Show Answer Correct Answer: D) $\frac{40}{50}$. 41. The chance of an event happening when expressed quantitatively is probability. A) CLASSICAL APPROACH. B) EMPIRICAL APPROACH. C) NONE. D) None of the above. Show Answer Correct Answer: A) CLASSICAL APPROACH. 42. A certain brand of TV has a 50% chance of being defective. Which model could be used to determine the probability that when two TVs are chosen, they will both be defective? A) Flip a coin twice. B) Roll a die twice. C) Flip a coin, then roll a die. D) Spin a spinner with 4 equal sections. Show Answer Correct Answer: A) Flip a coin twice. 43. Find the probability of rolling not a multiple of 3. A) $\frac{1}{3}$. B) $\frac{2}{3}$. C) $\frac{1}{6}$. D) $\frac{5}{6}$. Show Answer Correct Answer: B) $\frac{2}{3}$. 44. You flip a nickel three times.Find the probability that all flips will land on tails. A) 1/4. B) 1/8. C) 1/2. D) 1/6. Show Answer Correct Answer: B) 1/8. 45. Find the probability of each set of independent events.rolling a six on the first roll of a 1-6 number cube and rolling an odd number on the second roll of the same cube. A) 1/6. B) 1/2. C) 1/8. D) 1/12. Show Answer Correct Answer: D) 1/12. ← PreviousRelated QuizzesMathematics QuizzesClass 9 QuizzesClass 9 Maths Chapter 15 Probability Quiz 1 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books