Letdenote the probability of getting a disease if vaccinated, anddenotes the probability of getting the disease if unvaccinated, then vaccine efficacy (VE) is . That is, VE is a relative probability concept becauseis divided by. Suppose there are 1,000 people in the vaccinated (i.e., treatment) group, and 1,400 in the unvaccinated (i.e., control or placebo) group. Also, suppose that 5 people in the vaccinated group contract the disease and 85 people in the unvaccinated group contract the disease. Calculate the vaccine efficacy VE.

Letdenote the probability of getting a disease if vaccinated, anddenotes the probability of getting the disease if unvaccinated, then vaccine efficacy (VE) is . That is, VE is a relative probability concept becauseis divided by. Suppose there are 1,000 people in the vaccinated (i.e., treatment) group, and 1,400 in the unvaccinated (i.e., control or placebo) group. Also, suppose that 5 people in the vaccinated group contract the disease and 85 people in the unvaccinated group contract the disease. Calculate the vaccine efficacy VE.

A First Course in Probability (10th Edition)

10th Edition

ISBN:9780134753119

Author:Sheldon Ross

Publisher:Sheldon Ross

Chapter1: Combinatorial Analysis

Section: Chapter Questions

Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...

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