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Conditional Probability & Bayes' Theorem · Question 60 of 125

Question 60

MediumOriginal question

Read the two statements and choose the correct option.

I. If AA and BB are independent, then P(A∪B)=P(A)+P(B)P(A \cup B) = P(A) + P(B).

II. Independent events with positive probabilities cannot happen together.

Options for question 60

Show the answer and explanation
CorrectNot quiteAnswer D

Correct answer: D

Explanation

  1. I: that formula needs P(A∩B)=0P(A \cap B) = 0; independence gives P(A∩B)=P(A)P(B)>0P(A \cap B) = P(A)P(B) > 0. False.

  2. II: P(A∩B)=P(A)P(B)>0P(A \cap B) = P(A)P(B) > 0, so they can happen together. False.

Concept
Independent is not exclusive
Typical time
90 s
Your time
—
The rule this testsIndependent events
Practise this chapter →

Ten questions from Conditional Probability & Bayes' Theorem, at your own pace.

Practise this chapter →

Ten questions from Conditional Probability & Bayes' Theorem, at your own pace.