Question

Which of the following are examples of independent events? Two consecutive victories by the same army....

Which of the following are examples of independent events?

  1. Two consecutive victories by the same army.
  2. Two archeological discoveries at different locations in the same country, at the same time.
  3. Two people in the same family falling ill in the same week
  4. Two laughs by different people watching the same movie in a theater.
Math   Statistics-And-Probability   
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Answer #1

Examples B and D are an independent events.

Explanation:

A. Two consecutive victories are dependent because previous victory increases the probability of current victory.

B. Two archeological discoveries at different locations at same time in same country would not be same and related. These discoveries are independent.

C. There would be possibility of falling ill one person due to other in the same family due to infection.

D. Laughs pattern/style/type would be different for different person watching movie in theater. So, these events are independent.

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