A certain disease affects 1 in every 1000 people. If a town has a population of

A certain disease affects 1 in every 1000 people. If a town has a population of 10,000, how many people are expected to be affected? (2021)

A certain disease affects 1 in every 1000 people. If a town has a population of 10,000, how many people are expected to be affected? (2021)

Step 1: Understand that the disease affects 1 out of every 1000 people.
Step 2: Identify the total population of the town, which is 10,000 people.
Step 3: To find out how many people are affected, use the formula: (Number of people affected per 1000) × (Total population).
Step 4: Substitute the values into the formula: (1/1000) × 10,000.
Step 5: Calculate the result: 10,000 divided by 1000 equals 10.
Step 6: Conclude that 10 people are expected to be affected by the disease in the town.

Probability and Proportions – Understanding how to calculate expected values based on given probabilities and population sizes.
Basic Arithmetic – Applying multiplication to find the expected number of affected individuals.