Question
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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.)

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

  1. Let and .
  2. Since these events are mutually exclusive (a worker cannot primarily use both methods simultaneously), we add the probabilities:
  3. 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.

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