Students' Preference for Math Homework Environment

Selma conducted a survey among 30 students in her mic class to determine their preference for doing math homework. Out of the 30 students, ten preferred to do their math homework in silence, while twenty preferred to do it with background music. This survey results show a sampling bias because the sample was only taken from Selma's mic class.

Students in Selma's mic class may have a particular interest in music, leading to a preference for doing homework with background music. This makes the sample unrepresentative of the entire seventh grade population. If Selma had included students from other classes as well, the survey results may have been more balanced and reflective of the preferences of all seventh grade students.

Sampling bias can occur when the sample is not representative of the population being studied. In this case, students in the mic class may not represent the preferences of all seventh grade students. To address this bias, Selma should conduct her survey on a more diverse group of students to obtain more accurate and reliable data.

This example highlights the importance of sample selection in conducting surveys or studies. By ensuring a representative sample, researchers can minimize bias and obtain more reliable results that can be generalized to the entire population.