cheryl wants to find the number of hours seventh - graders do homework each week. there are 297 boys and…

cheryl wants to find the number of hours seventh - graders do homework each week. there are 297 boys and girls in seventh grade. if cheryl randomly surveyed 50 girls in the entire school to find the number of hours seventh - graders do homework each week, describe why she would get a biased sample.

cheryl wants to find the number of hours seventh - graders do homework each week. there are 297 boys and girls in seventh grade. if cheryl randomly surveyed 50 girls in the entire school to find the number of hours seventh - graders do homework each week, describe why she would get a biased sample.

Answer

Brief Explanations:

Cheryl only surveyed girls. Seventh - grade population has boys too. Boys' homework hours may differ from girls', so sample doesn't represent whole seventh - grade population.

Answer:

She only surveyed girls while the seventh - grade group has both boys and girls. Boys' homework habits may be different, so the sample is not representative of all seventh - graders.