The Higher Education Research Institute at UCLA collected data from 203,967 inco

Question

The Higher Education Research Institute at UCLA collected data from 203,967 incoming first-time, full-time freshmen from 270 four-year colleges and universities in the U.S. 71.3% of those students replied that, yes, they believe that same-sex couples should have the right to legal marital status. Suppose that you randomly select freshman from the study until you find one who replies "yes." You are interested in the number of freshmen you must ask. What is the probability that you will need to ask fewer than three freshmen? (Round your answer to four decimal places.) 0.9276X It is given that x must be below a certain value, which limits the rows to use in the PDF table. What is the sum of the probabilities of those rows?

Explanation / Answer

P(Need to ask fewer than three freshmen)

= P(1 Freshman) + P(2 Freshmen)

= 0.713 + (1 - 0.713)*0.713

= 0.9176

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