One of your classmates becomes a marketing analyst for a startup private transpo

Question

One of your classmates becomes a marketing analyst for a startup private transportation company. She surveys a group of 300 people who used ground transportation in Metropolis last Thursday. She finds that most of them used “for hire” services like taxicabs or ride services like Uber or Lyft. 138 survey respondents said they used a taxicab yesterday. 248 survey respondents said they used a ride service yesterday. 113 survey respondents stated they used both taxicab and ride service yesterday.

What is the probability that a single randomly-selected survey respondent used neither a taxicab nor a ride service yesterday?

Explanation / Answer

P( Use taxi cab or Ride ) = (138+248-113) /300 = 0.91

So, probability that a single randomly-selected survey respondent used neither a taxicab nor a ride service yesterday is 1-0.91 = 0.09

So, answer is 0.09

Related Questions

Navigate

• Browse (All)
• Browse O
• Subjects

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.