A café recorded customer preferences: Morning & Coffee: 39; Morning & Tea: 41; Evening & Coffee: 56; Evening & Tea: 50. Row totals: Morning: 80, Evening: 106. Grand total: 186. Given that a randomly selected person is Morning, what is the probability they are Tea? Answer: 0.5125
A health study recorded: Vaccinated & Infected: 24; Vaccinated & Not infected: 53; Unvaccinated & Infected: 53; Unvaccinated & Not infected: 56. Row totals: Vaccinated: 77, Unvaccinated: 109. Grand total: 186. Given that a randomly selected person is Unvaccinated, what is the probability they are Not infected? Answer: 0.5138
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