COVlD-19 Event Risk Assessment Planner 10,000,000 ' 1,000.000 ' '..t.3% Cha .e >99%Chance >99% Chance - o 4 400,000 100,000 Number of COVlD-19 Cases in USA 10,000 10 100 1,000 10.000 100.000 Party Wedding Concert NBA Game Rose Bowl Number of People at Event Figure 2. The probability that at least one individual at an event of a given size (x-axis) is positive for C0 FWD-19, given the number of cases currently circulating in the U514 (yaxis). This graph estimates the probability that there is 2 i infected individual based upon the size of the group and the number of cases. Probability is calculated as Probability = 1 (1 PI)\" where P; = C/K, C is the number of actively circulating cases in the US K is the population of the US ( 33 0x1 06), and n is the number of people at an event. Calculation assumes homogeneous risk across the USA} C. The calculations above, as well as in the Event Risk Assessment Planner presume that the cases of COVID-19 are spread homogeneously across the US. This is clearly not the case. Some areas have higher numbers of circulating cases at one time and lower at another. Visit the interactive map with the risk level of attending an event, given the event size and location, at httpscovidl9nsk.biosci.gatech.edu/ and check the risk level for NYC. (i) The interactive map shows risk levels for event sizes with 50 people as a default. Identify your county and report its risk level for an event size of n = 50. (ii) Use your answer to (i) and the probability formula given in the caption of Figure 2 to calculate P1, i.e., the probability that a randomly selected individual is infected in NYC. Reminder: if (1\" = y, then a = {/37 = 3111\"\". D. Based on your answer for C(ii), what would be the probability that at least one person was infected with COVID-19 if the following events were held in NYC: (i) NBA game? (ii) Wedding