Coronavirus STEM: Part 4

We have been sharing some math activities around coronavirus. Some fresh problems:

Problem 1. It takes, on average, 4.5 days to develop symptoms of coronavirus from the time the person is infected and the person may already be contagious before showing symptoms. It takes about 14 days to recover from the time you show symptoms. The person continues to be contagious for up to 2 weeks after all symptoms are gone. How long is a person with coronavirus contagious from the time they are exposed to the virus, and should practice social distancing?

Problem 2. The federal government has limited every federal site to 250 tests per day in Illinois. We have 3 Federal sites. How many tests is the federal government making available in Illinois daily at this time?

Problem 3. Using the current doubling rate, use the graph below to estimate the number of cases in one week.

Problem 4. Using the communicability rate of 2.2 infections for every infected person, how many people will the currently ill people will infect? Compare that to the answer from problem 2 and discuss the similarity or difference.

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