A sample of adults in a suburb was surveyed about their current employment status and…

MATHEMATICS · Multi-part · A Level · Mathematics · Probability · Probability

Problem

A sample of adults in a suburb was surveyed about their current employment status and their level of education. The results are summarised in the table below.
EmployedUnemployed
Attended university2257
Did not attend university19718
(1) Estimate the probability that the next randomly chosen adult: i attended university ii did not attend university and is currently employed iii is unemployed iv is unemployed *or* attended university. (2) A randomly chosen adult is found to be unemployed. Estimate the probability that he or she attended university.

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