This quiz works best with JavaScript enabled. Home > Cbse > Class 11 > Science > Mathematics > Class 11 Mathematics Chapter 16 Probability – Quiz 1 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 11 Mathematics Chapter 16 Probability Quiz 1 (60 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Dani has 5 pink bows, 1 blue bow, and 4 purple bows. She will randomly choose 1 bow from the box. The probability Dani will choose a pink bow is (a) A) 3/5. B) 2/5. C) A. 1/2. D) 1/10. Show Answer Correct Answer: C) A. 1/2. 2. Picking a green marble from a box that has 5 red marbles, 6 green marbles and 4 blue marbles A) Unlikely. B) Likely. C) Certain. D) Impossible. Show Answer Correct Answer: A) Unlikely. 3. A list of all possible outcomes A) Sample space. B) Experimental probability. C) Odds. D) Probability. Show Answer Correct Answer: A) Sample space. 4. Which of the following is an example of a compound event? A) Drawing a single card from a deck. B) Rolling a die. C) Tossing a coin. D) Spinning a bottle and rolling a die. Show Answer Correct Answer: D) Spinning a bottle and rolling a die. 5. A student is chosen at random from a class of 16 girls and 14 boys. What is the probability that the student chosen is not a girl? A) $\frac{7}{30}$. B) $\frac{3}{15}$. C) $\frac{8}{15}$. D) $\frac{7}{15}$. Show Answer Correct Answer: D) $\frac{7}{15}$. 6. How would you describe the likelihood of the event, given that P(event)=0.8? A) Certain. B) Somewhat likely. C) Likely. D) Very likely. Show Answer Correct Answer: C) Likely. 7. A coin is tossed two times. Find the probability of getting atmost one head. A) 0. B) 3/4. C) 1/2. D) 1/4. Show Answer Correct Answer: B) 3/4. 8. Find the percent of increase from 18 liters to 30 liters. Round to the nearest tenth of a percent if necessary. A) 50%. B) 70%. C) 66.7%. D) 60%. Show Answer Correct Answer: C) 66.7%. 9. What type of event is defined as having only one outcome? A) Simple Event. B) Independent Event. C) Compound Event. D) Dependent Event. Show Answer Correct Answer: A) Simple Event. 10. A farm has 5 brown cows and 10 white cows. A fence is open and two cows escape. What is the probability that it will be a brown cow, then a white cow?1/92/95/2110/21 A) 10/21. B) 1/9. C) 5/21. D) 2/9. Show Answer Correct Answer: C) 5/21. 11. Given the integers 1 through 33, what is the probability that one of these integers is divisible by 4 if it is a multiple of 6? A) 5/8. B) 5/33. C) 2/5. D) 1/4. Show Answer Correct Answer: C) 2/5. 12. Emily would like to buy some new furniture for her home. She decides to buy the furniture on credit with 9.5% interest compounded quarterly. If she spent $ 7, 400, how much total will she have paid after 8 years. A) $ 16, 109.05. B) $ 15, 683.28. C) $ 15, 415.94. D) $ 15, 927.56. Show Answer Correct Answer: B) $ 15, 683.28. 13. A box contains 4 white, 6 black, and 5 pink scarves. What is the probability of drawing a white or pink scarf? A) 9/15. B) 3/5. C) 5/8. D) 2/3. Show Answer Correct Answer: B) 3/5. 14. With ..... , the occurrence of one event does not affect the probability of the occurrence of another event.test tomorrow, rain tomorrow A) Sample space. B) Dependent events. C) Independent events. D) Fractions. Show Answer Correct Answer: C) Independent events. 15. ..... is the measure of a chance that a particular event will occur; written using fractions or percentages. A) Outcome. B) Probability. C) Event. D) Sample space. Show Answer Correct Answer: B) Probability. 16. The ..... that something might happen can be most likely or least likely (or anywhere in between). A) Chance. B) Ability. C) Model. D) Event. Show Answer Correct Answer: A) Chance. 17. A coin is tossed and a dice is rolled simultaneously. By listing the sample of all the possible outcomes of the event, find the probability that a head or a number greater than 4 are obtained. A) $\frac{1}{4}$. B) $\frac{3}{4}$. C) $\frac{1}{3}$. D) $\frac{2}{3}$. Show Answer Correct Answer: D) $\frac{2}{3}$. 18. The probability of an event is $\frac{37}{75}$ A) Certain. B) Likely. C) Equally likely to happen or not happen. D) Unlikely. Show Answer Correct Answer: B) Likely. 19. To multiply fractions, A) Find a common denominator and keep it in the answer. Just add the numerators. B) Multiply the numerators and denominators straight across (top x top = new top, and bottom x bottom = new bottom). C) Cross multiply (circle into a butterfly shape), and solve for x. D) Multiply by the reciprocal. Show Answer Correct Answer: B) Multiply the numerators and denominators straight across (top x top = new top, and bottom x bottom = new bottom). 20. Find the gradient of the line through (2, 4) and (6, 10). A) 1. B) 2.5. C) 1.5. D) 2. E) 3. Show Answer Correct Answer: C) 1.5. 21. A box contains 5 blue pens, 3 red pens and a number of black pens. A pen is picked at random from the box. The probability of picking a red pen is $\frac{1}{6}$ A) $\frac{5}{9}$. B) $\frac{1}{3}$. C) $\frac{2}{3}$. D) $\frac{4}{9}$. Show Answer Correct Answer: A) $\frac{5}{9}$. 22. A bag of candy contains 2 red, 4 yellow, and 4 green candies.P(NOT red or yellow) = A) 4/5. B) 2/5. C) 1/5. D) 3/5. Show Answer Correct Answer: B) 2/5. 23. A rectangle has length four times its width. The perimeter is 60 cm. What is the width? A) 24 cm. B) 6 cm. C) 12 cm. D) 10 cm. E) 15 cm. Show Answer Correct Answer: B) 6 cm. 24. Use the following words to describe the chance of the event occurring.You roll a normal six-sided die and roll a number less than 7 A) Certain. B) Impossible. C) Likely. D) Even Chance. Show Answer Correct Answer: A) Certain. 25. Two integers are randomly selected from the set {1, 2, 3, 4, 5, 6, 7, 8} without repetition. What is the probability that the sum of the numbers is 12? A) 2/9. B) 1/7. C) 1/9. D) 2/7. Show Answer Correct Answer: B) 1/7. 26. Which of these illustrates the associative property of multiplication? A) 6 (9 + 1) = (6 x 9) + (6 x 1). B) 4 x (56) = (45) x 6. C) 5 + 0 = 0 + 5. D) 4 x (5 x 6) = (4 x 5) x 6. Show Answer Correct Answer: D) 4 x (5 x 6) = (4 x 5) x 6. 27. Which of the following is homozygous recessive? A) AA. B) Aa. C) Aa. D) None of the above. Show Answer Correct Answer: B) Aa. 28. If a dice is rolled 300 times, how many times would you predict a roll of a 1 or a 6? A) 50. B) 75. C) 100. D) 150. Show Answer Correct Answer: C) 100. 29. Which event has a probability of zero or impossible to happen? A) Rolling a 7 on a 6 sided dice. B) Tossing a coin and landing on heads. C) Rolling an even number on a dice. D) The sun rising in the morning. Show Answer Correct Answer: A) Rolling a 7 on a 6 sided dice. 30. On a spinner, there are the numbers 1 to 10. What is the probability that the spinner will land on an even number 2 spins in a row? A) 1/4. B) 1/2. C) 4/5. D) 2/9. Show Answer Correct Answer: A) 1/4. 31. A standard die is rolled twice. Find each probability.P (the same number both times) A) 1/2. B) 1/9. C) 1/3. D) 1/6. Show Answer Correct Answer: D) 1/6. 32. If a bag contains 3 purple, 8 orange, 2 black, and 7 white marbles, what is the probability of an orange marble being selected? A) 1/2. B) 1/4. C) 3/4. D) 1. Show Answer Correct Answer: A) 1/2. 33. A bag contains 5 quarters, 2 dimes, and 4 pennies. What is the probability of picking a quarter? A) 5/11. B) 1/3. C) 6. D) 5/6. Show Answer Correct Answer: A) 5/11. 34. Diketahui fungsi-fungsi f dan g masing-masing ditentukan dengan rumus $f(x) = 3x^3-2x^2 + 4x-5$ $g(x) = x^2-5x + 6$ $(f-g)(x) = ..... $ A) $3x^3-6x^2 + 6x-11$. B) $3x^3-3x^2 + 9x-11$. C) $3x^3-x^2 + x-11$. D) $x^3-x^2 + x-11$. E) $13x^3-3x^2 + 19x-11$. Show Answer Correct Answer: B) $3x^3-3x^2 + 9x-11$. 35. In a college, there are 20 students who enrolled for commerce only, 90 students enrolled for mathematics only, 30 students enrolled for commerce and mathematics both and 60 students enrolled for others.Find total number of students enrolled either for commerce or mathematics. A) 140. B) 50. C) 200. D) 120. Show Answer Correct Answer: A) 140. 36. If the event will ..... , then its probability is 0. A) Happen. B) Never happen. C) Not occur. D) Occur. Show Answer Correct Answer: B) Never happen. 37. Ten people want to be seated around a circular table. What is the probability that two particular people will not be seated next to each other? A) 5/9. B) 7/9. C) 3/9. D) 8/9. Show Answer Correct Answer: B) 7/9. 38. If an event is sure to happen, then the probability is ..... A) 1/2. B) 3/4. C) 0. D) 1. Show Answer Correct Answer: D) 1. 39. Pia has eight shirts and three of them are blue shirts. 40% of the shirts that Yana has are blue. $\frac{1}{5}$ A) $\frac{43}{200}$. B) $\frac{61}{200}$. C) $\frac{139}{200}$. D) $\frac{157}{200}$. Show Answer Correct Answer: A) $\frac{43}{200}$. 40. When does the outcome of one event influence the outcome of the other event? A) Mutually exclusive events. B) Probability. C) Dependent events. D) Simple probability. Show Answer Correct Answer: C) Dependent events. 41. There are 20 boys in Mathematics club. The probability of choosing a girl at random from the club is 35. After holiday, 3 girls move in and become the member of the club. Calculate the number of girl members in Mathematics club now. A) 33. B) 15. C) 11. D) 30. Show Answer Correct Answer: A) 33. 42. Two dice are tossed, one is blue and the other is white. What is the probability the number on the white die is larger than the number on the blue die? A) $\frac{2}{3}$. B) $\frac{5}{12}$. C) $\frac{5}{9}$. D) $\frac{1}{2}$. E) $\frac{11}{36}$. Show Answer Correct Answer: B) $\frac{5}{12}$. 43. A box contains 5 purple marbles, 3 green marbles and 2 orange marbles. What is the probability of picking a purple marble? A) Unlikely. B) Even chance. C) Certain. D) Impossible. Show Answer Correct Answer: B) Even chance. 44. A fair dice is rolled once. Find the probability of getting a number that cannot be divided by 2. A) $\frac{2}{3}$. B) $\frac{1}{2}$. C) $\frac{1}{3}$. D) $\frac{5}{6}$. Show Answer Correct Answer: B) $\frac{1}{2}$. 45. A study recorded the number of students in five classrooms:12, 18, 20, 15, 25. What is the range? A) 10. B) 13. C) 15. D) 12. E) 5. Show Answer Correct Answer: B) 13. 46. A car salesman has noted that the probability that the dealership sells a car on a Saturday morning is 0.30. Then the probability of the dealership not selling a car on Saturday morning is 0.70. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 47. Three coins are tossed. What is the probability of getting at most two tails? A) $\frac{7}{8}$. B) $\frac{4}{8}$. C) $\frac{2}{8}$. D) $\frac{1}{8}$. Show Answer Correct Answer: A) $\frac{7}{8}$. 48. The letters that form the word MATHEMATICS are placed in a bowl. What are the odds against choosing an "A" ? A) 9:11. B) 9:2. C) 2:9. D) 11:9. Show Answer Correct Answer: B) 9:2. 49. Two dice are rolled. What is the probability that the sum is not 6? A) 5/36. B) 1/6. C) 31/36. D) 5/18. E) 13/18. Show Answer Correct Answer: C) 31/36. 50. Calculate the surface area of a sphere with a radius of 5 inches using the formula $A = 4 \pi r^2$ A) 314.16 square inches. B) 157.08 square inches. C) 392.70 square inches. D) 78.54 square inches. Show Answer Correct Answer: A) 314.16 square inches. 51. A bag contains 5 blue marbles and 15 green marbles. What is the likelihood of choosing a blue marble? A) Impossible. B) Likely. C) Certain. D) Unlikely. Show Answer Correct Answer: D) Unlikely. 52. What is the probability of getting heads when you flip a coin? A) Certain. B) Likely. C) Equally Likely. D) Impossible. Show Answer Correct Answer: C) Equally Likely. 53. If you are picking a card randomly from a deck of cards, the events of picking an ace and picking a '3' are mutually exclusive. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 54. If the probability that it will rain is .415 and the probability it will snow is .234, what is the probability it will not rain? A) .234. B) .585. C) .766. D) .415. Show Answer Correct Answer: B) .585. 55. In modern times, machines have saved human effort. However, there are characteristics that humans have which machines lack. What are they?1.Creativity2.Flexibility3.Compassion4.Empathy A) 1 and 2. B) 2, 3, and 4. C) 3 and 4. D) 1, 2, 3, and 4. Show Answer Correct Answer: D) 1, 2, 3, and 4. 56. Refers to an event which will never happen A) Likely. B) Certain. C) Impossible. D) Unlikely. Show Answer Correct Answer: C) Impossible. 57. What is the probability of getting a king or queen from a standard deck of cards? A) 1/52. B) 1/26. C) 2/13. D) 1/13. Show Answer Correct Answer: C) 2/13. 58. How would you describe the likelihood of the event, given that P(event)=0.35? A) Somewhat unlikely. B) Somewhat likely. C) Very unlikely. D) Very likely. Show Answer Correct Answer: A) Somewhat unlikely. 59. Tammy rolled a dice five times.Here is what she got on her five rolls:3, 1, 4, 3, & 4Find the experimental probability:P(3) = A) 2/5. B) 1/6. C) 1/3. D) 3/5. Show Answer Correct Answer: A) 2/5. 60. A card from a pack of 52 cards is lost. From the remaining cards of the pack, two cards are drawn and are found to be both diamonds. What is the probability of the lost card being a diamond? A) $\frac{11}{50}$. B) $\frac{3}{25}$. C) $\frac{1}{5}$. D) None of these. Show Answer Correct Answer: A) $\frac{11}{50}$. 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