Respuesta :
Answer:
You can use probability because if the ratio is 1:5 meaning that out of 5 people one person is likely to get sick. So then you take that ratio and apply it to the population of an area.
Explanation:
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Ask: It can help by telling which person has a sickness
Explanation:
Basically looking at how many people have already gotten sick in that state and looking how they can put out vaccines