Tammy conducted a survey to find the favorite subject of the students at her school. She asked 25 students from her math class what their favorite subject is. Tammy concludes that math is the favorite subject of the students at her school because 60% of the students in her class like math.
Use at least two sentences to explain why Tammy's sample may not be valid. Make sure to use facts to support your answer.
Tammy’s sample is not valid because 25 students is a very small amount compared to that in a school. Another reason it is not valid is because she didn’t ask everybody in the school, and it is based on opinion. Not everybody may like math.
