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A certain disease affects 1 in 1000 people. If a town has a population of 50,000

Practice Questions

Q1
A certain disease affects 1 in 1000 people. If a town has a population of 50,000, how many people are expected to be affected? (2022)
  1. 50
  2. 100
  3. 25
  4. 75

Questions & Step-by-Step Solutions

A certain disease affects 1 in 1000 people. If a town has a population of 50,000, how many people are expected to be affected? (2022)
  • Step 1: Understand that the disease affects 1 in 1000 people.
  • Step 2: Identify the total population of the town, which is 50,000 people.
  • Step 3: To find out how many people are affected, divide the total population by the number of people affected per case (1000).
  • Step 4: Perform the calculation: 50,000 divided by 1000 equals 50.
  • Step 5: Conclude that approximately 50 people in the town are expected to be affected by the disease.
  • Probability and Proportions – Understanding how to calculate expected values based on given probabilities and population sizes.
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