What is the probability of randomly selecting a respondent who is female  and uses a taxi? What is the probability of selecting a respondent who is male, given that they travel by bus? What is the probability of selecting a respondent who is female or who travels by taxi? What is the probability of randomly selecting a respondent from the sample who does not travel by taxi?

Calculus For The Life Sciences
2nd Edition
ISBN:9780321964038
Author:GREENWELL, Raymond N., RITCHEY, Nathan P., Lial, Margaret L.
Publisher:GREENWELL, Raymond N., RITCHEY, Nathan P., Lial, Margaret L.
Chapter12: Probability
Section12.3: Conditional Probability; Independent Events; Bayes' Theorem
Problem 63E: Seat Belt Effectiveness A federal study showed that 63.8 of occupants involved in a fatal car crash...
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  CAR BUS TAXI TOTAL
NUMBER OF FEMALES 50 100 10 160
NUMBER OF MEN 75 95 70 240
TOTAL 125 195 80 400

What is the probability of randomly selecting a respondent who is female  and uses a taxi?

What is the probability of selecting a respondent who is male, given that they travel by bus?


What is the probability of selecting a respondent who is female or who travels by taxi?

What is the probability of randomly selecting a respondent from the sample who does not travel by taxi?

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