• According to latest data from the Rhode Island Department of Health (RIDOH),63,806 individuals have so far been tested for COVID-19 in the city of Providence.
• Among those who got tested,8,344 have tested positive for COVID-19.
• Total estimated population for Providence is 179,435.

Please answer the following:

1. Compute the prevalence proportion of COVID-19 in Providence so far. Show the steps. (2)

2.How would you interpret or explain the prevalence computed above to someone who is not familiar with epidemiological terms? (2)

[Note: You will not receive any credit for answers such as, "I would explain by saying the prevalence of COVID-19 in Providence is .....%"This is a restatement, not an interpretation.]

3. Compute the proportion of Providence residents who have been tested for COVID-19 (irrespective of whether they have tested positive or negative). Please show the steps (2)

4. Compute the proportion of individuals who have tested positive out of everyone who received a COVID-19 test in the city of Providence. Please show the steps. (2) [This is sometimes referred to as the "percent positive rate" or "positivity rate".]

5. What is the public health importance of the proportion computed in question 4?