Question
According to the U.S. Census Bureau, the probability that a randomly selected worker primarily drives a car to work is 0.7637 . The probability that a randomly selected worker primarily takes public
transportation to work is 0.0509 . Complete parts (a) through (d).
(a) What is the probability that a randomly selected worker primarily drives a car or takes public transportation to work?
P (worker drives a car or takes public transportation to work)
(Round to four decimal places as needed.)
transportation to work is 0.0509 . Complete parts (a) through (d).
(a) What is the probability that a randomly selected worker primarily drives a car or takes public transportation to work?
P (worker drives a car or takes public transportation to work)
(Round to four decimal places as needed.)
Ask by Logan Schultz. in the United States
Mar 19,2025
Upstudy AI Solution
Tutor-Verified Answer
Answer
The probability that a randomly selected worker primarily drives a car or takes public transportation to work is 0.8146.
Solution
-
Let
and . -
Since these events are mutually exclusive (a worker cannot primarily use both methods simultaneously), we add the probabilities:
-
Substitute the given values:
Thus, the probability that a randomly selected worker primarily drives a car or takes public transportation to work is
.
Answered by UpStudy AI and reviewed by a Professional Tutor
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Mind Expander
To find the probability that a randomly selected worker either drives a car or takes public transportation, we can use the formula for the union of two events. Here, we have:
-
(probability that a worker drives a car) -
(probability that a worker takes public transportation)
Since these two events are mutually exclusive (a worker cannot do both at the same time), we add their probabilities:
Thus, the probability that a randomly selected worker primarily drives a car or takes public transportation to work is
P (worker drives a car or takes public transportation to work) = 0.8146.