Probability that people like pizza is p (a) = 0.70. probability that people like burger is p (b) = 0.40. probability that people like both pizza and burger is p (a and

b. = 0.30. based on these data what is the probability that randomly selected person likes pizza or likes burger? use formula for p (a or b).

Question

Atkinson

Mathematics

11 August, 18:04

Probability that people like pizza is p (a) = 0.70. probability that people like burger is p (b) = 0.40. probability that people like both pizza and burger is p (a and

b. = 0.30. based on these data what is the probability that randomly selected person likes pizza or likes burger? use formula for p (a or b).

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Answers (1)

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Elsie · Answer 1

By addition theorem of probability,

P (AUB) = P (A) + P (B) - P (A∩B)

or

P (A or B) = P (A) + P (B) - P (A and B)

P (A or B) = 0.7 + 0.4 - 0.3 = 0.8

Therefore, the probability that randomly selected person likes pizza or burger is 0.8