Question

Miguel surveyed all the members of the junior high choir about their favorite class. The results from his survey are: Favorite Class Number of Students choir 19 math 7 history 5 English 9 science 4 Miguel concluded, from his results, that the favorite class among the entire student body would also be choir. Which is the best explanation of why his conclusion might not be true?

Answer 1

His sample group does not represent the entire school body.

Explanation:

Answer 2

He has surveyed the students who are already participating in the choir. So naturally the number of students who likes the choir class will be higher than in other classes. You can see it reflected in the data.

Explanation:

He has surveyed the students who are already participating in the choir. So naturally the number of students who likes the choir class will be higher than in other classes. You can see it reflected in the data.

If he needs to make an inference on the whole school he needs to randomly pick people from the school and ask the same question. Then he can make a better inference about the favorite class of students.