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Chapter 4

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    Probability with permutations and combinations
  •   Study   Slideshow
  • If 1 of the 839 challenges is randomly selected, find the probability of getting a challenge that was rejected.
    512 / 839 or 0.610
  •  10
  • If 1 of the 839 challenges is randomly selected, find the probability of getting a challenge that was made by a male player or was rejected.
    713 / 839 or 0.850
  •  10
  • Find the probability of randomly selecting 1 of the 839 challenges and getting a challenge that was accepted and was made by a female player.
    126 / 839 or 0.150
  •  10
  • If 1 of the 1028 subjects is randomly selected, find the probability of selecting someone sentenced to prision.
    0.438
  •  10
  • If 1 of the subjects is randomly selected, find the probability of selecting someone who was sentenced to prison or entered a plea of guilty.
    0.986
  •  10
  • If 1 of the subjects is randomly selected, find the probability of selecting someone who entered a plea of not guilty or was not sentenced to prison.
    0.619
  •  10
  • If an event has a 65.7% chance of occurring, what is the probability that the event will not occur?
    34.3% or 0.343
  •  5
  • The sum of the probabilities of all possible events must ________.
    Equal 1
  •  5
  • What does it mean if the probability of an event is equal to 0?
    The event is impossible
  •  5
  • What is the probability of an event that is certain?
    Probability = 1
  •  5
  • A compound event is ___________.
    ...Any event combining two or more simple events.
  •  5
  • If 2 different study subjects are randomly selected, find the probability that they both entered pleas of not guilty.
    0.00484
  •  15
  • 35% of the population has blue eyes. If someone is randomly selected, what is the probability that he or she does not have blue eyes?
    0.65
  •  10
  • 35% of the population has blue eyes. If four different people are randomly selected, what is the probability that they all have blue eyes?
    0.0150
  •  10
  • In a population, about 40% of people have brown eyes, 35% have blue, 12% have green, 7% have gray, and 6% have hazel. If two are selected, find the probability that at least one has brown eyes.
    0.64
  •  15
  • This squirrel is:
    adorable / cute / fluffy
  •  25