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Answer: Our required probability is 0.07 i.e. 0.1.
Step-by-step explanation:
Let A be the event that "the person is infected".
Let B be the event that "the person tests positive".
Probability of person is positive if the person has the virus = 85%
Probability of person is positive if the person does not have the virus = 5%
P(B|A) = 0.85
So, P(A) = ![\dfrac{1}{200}=0.005](https://tex.z-dn.net/?f=%5Cdfrac%7B1%7D%7B200%7D%3D0.005)
P(B) is given by
![\dfrac{1}{200}\times 0.85+\dfrac{199}{200}\times 0.05\\\\=0.00425+0.04975\\\\=0.054](https://tex.z-dn.net/?f=%5Cdfrac%7B1%7D%7B200%7D%5Ctimes%200.85%2B%5Cdfrac%7B199%7D%7B200%7D%5Ctimes%200.05%5C%5C%5C%5C%3D0.00425%2B0.04975%5C%5C%5C%5C%3D0.054)
So, We need to find P(A|B) which is given by
![P(A|B)=P(B|A)\times \dfrac{P(A)}{P(B)}\\\\P(A|B)=0.85\times \dfrac{0.005}{0.054}\\\\P(A|B)=0.0787](https://tex.z-dn.net/?f=P%28A%7CB%29%3DP%28B%7CA%29%5Ctimes%20%5Cdfrac%7BP%28A%29%7D%7BP%28B%29%7D%5C%5C%5C%5CP%28A%7CB%29%3D0.85%5Ctimes%20%5Cdfrac%7B0.005%7D%7B0.054%7D%5C%5C%5C%5CP%28A%7CB%29%3D0.0787)
Hence, our required probability is 0.07 i.e. 0.1.
Answer:
w=p/2-l
Step-by-step explanation:
you have to simplify the equation p=2(l+w).
1) Isolate the variables l and q
p/2=l+w
2) Subtract the length from the width.
p/2-l=w
3) The answer is b, or w=p/2-l
Answer:
the correct answer is (-7,-2,7,0)
If the garden is rectangular your answer would be 191.125 ft or 191 1/8 ft.
If I helped, help me out by making this answer the brainliest.