Probability of Impossible Events
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Questions and Answers

What is the probability of an event E if the distance favourable to the event is 1 and the total distance is 2?

  • 1/4
  • 1/3
  • 3/4
  • 1/2 (correct)

    • What is the probability that the helicopter crashed inside the lake in the rectangular region?

  • 1/2
  • 2/5
  • 7/27 (correct)
  • 3/4

    • What is the total number of shirts in the carton?

  • 90
  • 80
  • 110
  • 100 (correct)

    • What is the probability that the shirt drawn is acceptable to Jimmy?

    <p>88/100</p> Signup and view all the answers

    What is the probability that the shirt drawn is acceptable to Sujatha?

    <p>92/100</p> Signup and view all the answers

    What is the idea behind finding the probability as the ratio of the favourable area to the total area?

    <p>The helicopter is equally likely to crash anywhere in the region.</p> Signup and view all the answers

    What is the probability of an event that cannot occur?

    <p>0</p> Signup and view all the answers

    If P(E) = 0.05, what is the probability of ‘not E’?

    <p>0.95</p> Signup and view all the answers

    What is the probability that Malini takes out an orange flavoured candy from the bag?

    <p>0</p> Signup and view all the answers

    If the probability of 2 students not having the same birthday is 0.992, what is the probability that the 2 students have the same birthday?

    <p>0.008</p> Signup and view all the answers

    What is the probability that the marble taken out of the box will be not green?

    <p>13/17</p> Signup and view all the answers

    What is the probability that the coin will not be a ` 5 coin?

    <p>140/180</p> Signup and view all the answers

    What is the probability of an event that is impossible to occur?

    <p>0</p> Signup and view all the answers

    What is the probability of an event that is sure to occur?

    <p>1</p> Signup and view all the answers

    What is the range of the probability of an event E?

    <p>0 ≤ P(E) ≤ 1</p> Signup and view all the answers

    If one card is drawn from a well-shuffled deck of 52 cards, what is the total number of favourable outcomes for the event of getting a card that is not an ace?

    <p>51</p> Signup and view all the answers

    What is the number of cards in each suit in a deck of playing cards?

    <p>13</p> Signup and view all the answers

    What is the total number of face cards in a deck of playing cards?

    <p>16</p> Signup and view all the answers

    What is the number of equally likely outcomes when a shirt is drawn at random from a carton of 100 shirts?

    <p>100</p> Signup and view all the answers

    What is the probability that a shirt is acceptable to Jimmy?

    <p>0.88</p> Signup and view all the answers

    What is the probability that a shirt is acceptable to Sujatha?

    <p>0.96</p> Signup and view all the answers

    What is the total number of possible outcomes when two dice, one blue and one grey, are thrown at the same time?

    <p>36</p> Signup and view all the answers

    Why are the outcomes (1, 4) and (4, 1) considered different in the experiment of rolling two dice?

    <p>Because the order of the numbers matters</p> Signup and view all the answers

    What is the purpose of listing all the possible outcomes in the table when rolling two dice?

    <p>To find the number of possible outcomes</p> Signup and view all the answers

    What is the probability that the arrow will point at the number 8?

    <p>1/8</p> Signup and view all the answers

    A die is thrown once. What is the probability of getting a prime number?

    <p>1/3</p> Signup and view all the answers

    One card is drawn from a well-shuffled deck of 52 cards. What is the probability of getting a king of red color?

    <p>1/26</p> Signup and view all the answers

    Five cards are well-shuffled with their face downwards. One card is then picked up at random. What is the probability that the card is the queen?

    <p>1/5</p> Signup and view all the answers

    12 defective pens are accidentally mixed with 132 good ones. One pen is taken out at random from this lot. What is the probability that the pen taken out is a good one?

    <p>132/144</p> Signup and view all the answers

    A lot of 20 bulbs contain 4 defective ones. One bulb is drawn at random from the lot. What is the probability that this bulb is not defective?

    <p>16/20</p> Signup and view all the answers

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