4. The following data are the results from the Pfizer Covid 19 vaccine trials. Efficacy End-Point Subgroup BNT16262, 30 pg (N-21,669) No. of participants Surveillance time person-yr (no. at risk) Placebo (N-21,686) No. of participants Surveillance time person-yr (no. at risk) Covid-19 occurrence After dose 1 After dose 1 to before dose 2 Dose 2 to 7 days after dose 2 27 Days after dose 2 SO 39 4.015 (21,314) 3.982 (21,258) 275 82 21 172 6. a) 21669 individuals were given the vaccine in this trial and 50 were infected after they received the first vaccine. What is the probability of becoming infected with Covid 19 after receiving 1 dose of the Pfizer vaccine? This is P(infected vaccinated group) b) What is a 90% confidence interval for the proportion of people receiving the first vaccine becoming infected with Covid 19? c) The placebo group consisted of persons not receiving the vaccine. 21686 individuals were in the placebo group in this trial and 275 were eventually infected by Covid 19. What is the probability of becoming infected with Covid 19 if you were in the placebo group and not receiving the Pfizer vaccine? This is P(infected placebo group)

4. The following data are the results from the Pfizer Covid 19 vaccine trials. Efficacy End-Point Subgroup BNT16262, 30 pg (N-21,669) No. of participants Surveillance time person-yr (no. at risk) Placebo (N-21,686) No. of participants Surveillance time person-yr (no. at risk) Covid-19 occurrence After dose 1 After dose 1 to before dose 2 Dose 2 to 7 days after dose 2 27 Days after dose 2 SO 39 4.015 (21,314) 3.982 (21,258) 275 82 21 172 6. a) 21669 individuals were given the vaccine in this trial and 50 were infected after they received the first vaccine. What is the probability of becoming infected with Covid 19 after receiving 1 dose of the Pfizer vaccine? This is P(infected vaccinated group) b) What is a 90% confidence interval for the proportion of people receiving the first vaccine becoming infected with Covid 19? c) The placebo group consisted of persons not receiving the vaccine. 21686 individuals were in the placebo group in this trial and 275 were eventually infected by Covid 19. What is the probability of becoming infected with Covid 19 if you were in the placebo group and not receiving the Pfizer vaccine? This is P(infected placebo group)

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Description: a probability of 95%?4. The following data are the results from the Pfizer Covid 19 vaccine trials.BNT16262, 30 pg (N-21,669)No. of participants Surveillance timeperson-yr (no. at risk)Efficacy End-Point SubgroupPlacebo (N-21,686)No. of participants

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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