Question

You want to determine the number of students in your school who have visited a science museum. You survey $50$ students at random. Twenty have visited a science museum, and thirty have not. So, you conclude that $40\%$ of the students in your school have visited a science museum. Is your conclusion valid? Explain.

Answer 1

Step 1: Title

Total number of students the survey taken = $50$
Number of students in visited science museum = $20$
Number of students who did not visit science museum = $30$

Step 2: Title

Percentage of students visited a science museum =

(Number of students in visited science museum/Total number of students the survey taken) $\times 100$

Step 3: Title

$\frac{20}{50}\times 100=40\%$

Final Answer: It’s a valid Conclusion that $40\%$ of the students in your school have visited a science museum.