Asked by Anonymous
One hundred people were surveyed about their breakfast preferences. They had to choose between french toast and pancakes and between sausage and bacon. The results are in the table below:
Category French Toast Pancakes
Sausage 25 21
Bacon 23 31
What is the probability that a randomly selected person from the survey prefers bacon or pancakes?
23/100
31/100 ***
27/50
23/50
Category French Toast Pancakes
Sausage 25 21
Bacon 23 31
What is the probability that a randomly selected person from the survey prefers bacon or pancakes?
23/100
31/100 ***
27/50
23/50
Answers
Answered by
Candlelight
Liking pancakes and liking bacon are not mutually exclusive events, because some people like both. Therefore,
P(P or B)
= P(P) + P(B) - P(P and B)
= [(21 + 31) + (23 + 31) - (31)]/100
= ?
P(P or B)
= P(P) + P(B) - P(P and B)
= [(21 + 31) + (23 + 31) - (31)]/100
= ?
Answered by
Anonymous
Thank you
Answered by
Anonymous
3/4 ??????
Answered by
Candlelight
Yes, that's correct.
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