Answer:
1/5 or 0.2 i hope this helped you
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:
7/24
Step-by-step explanation:
Let
x-----> the shaded area
we know that
x+\frac{1}{3}+\frac{3}{8}=1
Because the complete circle represent the 100\%
and
The answer to your question is 11+7+3
Answer:
a = 1 , b = 0 and c = 5
Step-by-step explanation:
The given matrix are,
[2 1 0] X 1 -1 2 = [a b c]
-1 -2 1
0 1 1
a = (2*1) + (1*-1) +(0*0) = 2 -1 + 0 = 1
b = (2*-1) + (1*-2) +(0*1) =-2 -2 + 0 = 0
c = (2*2) + (1*1) +(0*1) = 4 +1 + 0 = 5
Therefore the values of a,b, and c are
a= 1 , b = 0 and c = 5
