The Ministry of Health and Social Services (MoHSS) in Namibia intends to embark upon a COVID 19 vaccination campaign in the Country. But before deciding which type of COVID 19 vaccine to be ordered from the Manufacturers, they first carried out a survey on some countries around the world in order to establish the most preferred vaccine. The findings revealed that: Sixty-eight 68 of them prefer the Pfizer, Fifty-two 52 prefer the modern, and forty-eight 48 prefer the AstraZeneca, Thirty 36 of them prefer Pfizer and AstraZeneca, twenty-two 22 of the prefer Moderna and AstraZeneca, 24 prefer Moderna, only 26 prefer Pfizer only, and the remaining 90 countries preferred none of the vaccines. a) Draw the Venn Diagram depicting all the information. b) What is the percentage of the countries that prefer Moderna and Pfizer but not AstraZeneca? c) How many preferred Pfizer or AstraZeneca but not Moderana? d) what is the ratio (in the simplest form) of the countries that preferred Moderna to those that prefer Pfizer and AstraZeneca e) How many countries did not prefer AstraZeneca? f) What is the number of countries that prefer at most two of given vaccines? g) In order to have a better understanding of the result, the MoHSS decided to added two more countries to its initial sample size. One of the country prefers AstraZeca and Pfizer. The other prefers AstraZeca and Moderna. What is the percentage increase in the number of countries that prefer AstraZeneca.
The Ministry of Health and Social Services (MoHSS) in Namibia intends to embark upon a COVID 19 vaccination campaign in the Country. But before deciding which type of COVID 19 vaccine to be ordered from the Manufacturers, they first carried out a survey on some countries around the world in order to establish the most preferred vaccine. The findings revealed that: Sixty-eight 68 of them prefer the Pfizer, Fifty-two 52 prefer the modern, and forty-eight 48 prefer the AstraZeneca, Thirty 36 of them prefer Pfizer and AstraZeneca, twenty-two 22 of the prefer Moderna and AstraZeneca, 24 prefer Moderna, only 26 prefer Pfizer only, and the remaining 90 countries preferred none of the vaccines.
a) Draw the Venn Diagram depicting all the information.
b) What is the percentage of the countries that prefer Moderna and Pfizer but not AstraZeneca?
c) How many preferred Pfizer or AstraZeneca but not Moderana?
d) what is the ratio (in the simplest form) of the countries that preferred Moderna to those that prefer Pfizer and AstraZeneca
e) How many countries did not prefer AstraZeneca?
f) What is the number of countries that prefer at most two of given vaccines?
g) In order to have a better understanding of the result, the MoHSS decided to added two more countries to its initial sample size. One of the country prefers AstraZeca and Pfizer. The other prefers AstraZeca and Moderna. What is the percentage increase in the number of countries that prefer AstraZeneca.
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