Textbook ExpertVerified Tutor
1 Nov 2021
Given information
The World Bank records the prevalence of HIV in countries around the world. According to their data, “Prevalence of
HIV refers to the percentage of people ages 15 to 49 who are infected with HIV.”
In South Africa, the prevalence of HIV
is . the number of people you test until you find a person infected with HIV.
Step-by-step explanation
Step 1.
The required probability can be written as . This probability can be calculated by using the Ti-83 calculator. For this, click on , then DISTR and then scroll down to the geometpdf option and enter the provided details. After this, click on ENTER button of calculator to have the desired result.
Therefore, the value of .
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