For events A and B, suppose P (A) = 0.7 and P (A and B) = 0.28. Are A and B independent?

Question

Mathematics

Jan Patel

6 November, 18:59

For events A and B, suppose P (A) = 0.7 and P (A and B) = 0.28. Are A and B independent?

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Answers (1)

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Cesar Lucero · Answer 1

Yes

Step-by-step explanation:

Since P (A) = 0.7 and P (A and B) = 0.28, then P (B) must be 0.4 because 0.7*0.4=0.28.

Since P (A and B) is a combined probability, P (A) and P (B) are independent.