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Dependent and independent events

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Problem

There are 150 students in an eleventh grade high school class. There are 45 students in the soccer team and 35 students in the basketball team. Out of these students, there are 20 who play on both teams.
Let A be the event that a randomly selected student in the class plays soccer and B be the event that the student plays basketball. Based on this information, answer the following questions.
What is P(A), the probability that the student plays soccer?
  • Your answer should be
  • an integer, like 6
  • an exact decimal, like 0.75
  • a proper fraction, like 1/2 or 6/10
  • an improper fraction, like 10/7 or 14/8
  • a mixed number, like 1 3/4
What is P(B), the probability that the student plays basketball?
  • Your answer should be
  • an integer, like 6
  • an exact decimal, like 0.75
  • a proper fraction, like 1/2 or 6/10
  • an improper fraction, like 10/7 or 14/8
  • a mixed number, like 1 3/4
What is P(A and B), the probability that the student plays soccer and basketball?
  • Your answer should be
  • an integer, like 6
  • an exact decimal, like 0.75
  • a proper fraction, like 1/2 or 6/10
  • an improper fraction, like 10/7 or 14/8
  • a mixed number, like 1 3/4
What is P(A | B), the conditional probability that the student plays soccer given that he or she plays basketball?
  • Your answer should be
  • an integer, like 6
  • an exact decimal, like 0.75
  • a proper fraction, like 1/2 or 6/10
  • an improper fraction, like 10/7 or 14/8
  • a mixed number, like 1 3/4
Is P(A | B)=P(A)? Are the events A and B independent?
Choose all answers that apply:
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