In a study, 80% of patients with a certain disease showed improvement after trea
Practice Questions
Q1
In a study, 80% of patients with a certain disease showed improvement after treatment. If 50 patients were treated, how many patients are expected to show improvement? (2023)
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Questions & Step-by-Step Solutions
In a study, 80% of patients with a certain disease showed improvement after treatment. If 50 patients were treated, how many patients are expected to show improvement? (2023)
Step 1: Understand that 80% means 80 out of every 100 patients.
Step 2: Convert 80% into a decimal. 80% as a decimal is 0.8.
Step 3: Identify the total number of patients treated, which is 50.
Step 4: Multiply the decimal (0.8) by the total number of patients (50).
Step 5: Calculate 0.8 × 50 = 40.
Step 6: Conclude that 40 patients are expected to show improvement.
