If 25% of the people <em>are</em> vaccinated, then 75% of the people are <em>not</em> vaccinated. Of those not vaccinated, each has a 50% chance of contracting the disease. The probability that someone is both not vaccinated and contracts the disease is (0.75)(0.5)=0.375.
The probability that someone is vaccinated and contracts the disease is (0.25)(0.1)=0.025 (it is multiplied by 0.1 because if the vaccine is 90% effective, then there is a 10% chance someone that is vaccinated can contract the disease.
Add these together for the total: 0.375+0.025=0.4
There is a 40% chance that someone chosen at random will contract the disease.
Answer:
n+n+2=10
Step-by-step explanation:
N would equal 4.
Because 4+4+2=10!
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Answer:
Step-by-step explanation:
f(1)=45*4/5
=9*4
=36
Oh that’s simple its 3 :)
Answer:
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Step-by-step explanation:
