If a disease has a case fatality rate of 4% and there are 250 confirmed cases, h

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Question: If a disease has a case fatality rate of 4% and there are 250 confirmed cases, how many deaths are expected? (2023)

Options:

Correct Answer: 8

Exam Year: 2023

Solution:

Expected deaths = Case fatality rate × Number of cases = 0.04 × 250 = 10.

If a disease has a case fatality rate of 4% and there are 250 confirmed cases, how many deaths are expected? (2023)

If a disease has a case fatality rate of 4% and there are 250 confirmed cases, how many deaths are expected? (2023)

Step 1: Understand the case fatality rate (CFR). It tells us the percentage of people who die from a disease out of all confirmed cases.
Step 2: Identify the case fatality rate given in the question, which is 4%. Convert this percentage to a decimal by dividing by 100. So, 4% becomes 0.04.
Step 3: Identify the total number of confirmed cases, which is 250.
Step 4: To find the expected number of deaths, multiply the case fatality rate (0.04) by the number of confirmed cases (250).
Step 5: Perform the multiplication: 0.04 × 250 = 10.
Step 6: The result, 10, is the expected number of deaths from the disease.

Case Fatality Rate (CFR) – The proportion of deaths from a disease compared to the total number of diagnosed cases.
Basic Arithmetic – The ability to perform multiplication to calculate expected outcomes based on given rates.